WARNING: This audio may not be reproduced or republished.

It is the audio tape that could destroy Mel Gibson.

The Hollywood star is accused by Oksana Grigorieva of hitting her and their infant daughter in an explosive argument recorded on tape, obtained and released exclusively by GotCelebrities.com.

“You hit me, and you hit her (Lucia) while she was in my hands! Mel, you’re losing your mind. You need medication,” Oksana tells him on the newly released tape.

And Mel, raging at Oksana, is caught on audio telling her: “I want my child, and no one will believe you.”

PHOTOS: Celebrity Racist Rants

It may be the most damaging tape against Mel yet. RadarOnline.com has released five other audio portions with Mel spewing vile, racist rants, threatening Oksana and telling her she “f*cking deserved it” after she complained that he hit her.

But this, the sixth excerpt released exclusively by RadarOnline.com, may have the most serious consequences for Gibson, as a criminal investigation has been launched against him while he and Oksana battle in court for custody of their eight-month-old daughter Lucia. An investigation by the Department of Children and Family Services is also ongoing.

PHOTOS: Oksana Through The Years

In the crucial part of the newly released tape, Oksana refers to January 6, the night she alleges Mel punched her in the face and damaged her two upper front teeth.

RadarOnline.com was first to report that Oksana told law enforcement authorities she was holding Lucia, who was two months old, when Mel punched her. And RadarOnline.com broke the news on Thursday that Oksana says she has a photograph of the baby with a bruise on her face after the incident.

EXCLUSIVE PHOTOS: See The First Photos of Mel and Oksana In a Passionate Embrace On The Beach

In this new tape, Oksana refers to that incident and tells Mel that there is something wrong with him and he needs medication. This is the recorded dialogue after she says that:

Oksana: You cannot raise the child with these symptoms.

Mel: What?

Oksana: You’re acting as a crazy man right now and you have been for many, many months. And you hit me, and you hit her (Lucia) while she was in my hands! Mel, you’re losing your mind. You need medication.”

Mel: You need a f*cking kick up the a** for being a b*tch, c*nt, gold digging whore! With a p*ssy son! And I want my child, and no one will believe you! So f*ck you!”

PHOTOS: Celebrity Death Threats

While there is cross talk as Oksana and Mel argue, Oksana’s team views it as an admission that Mel hit the baby when he punched Oksana and damaged her front teeth, the source close to the situation told RadarOnline.com exclusively.

WARNING: This audio contains graphic and profane language. It has been left unedited so that the full impact of Mel’s rant can be heard. RadarOnline.com has not altered this tape in any way.

An attorney for actor John Stamos denies the “Full House” and “ER” star had a romantic fling with a 17-year-old girl who six years later is accused of scheming to bilk him of hundreds of thousands of dollars by threatening to sell compromising photos to the tabloids.

A defense lawyer made the allegation Monday during opening arguments in U.S. District Court as Allison Coss and Scott Sippola went on trial, charged with conspiracy to commit extortion. Coss, 24, and Sippola, 31, both of Marquette, are accused of conspiring to extort $680,000 from Stamos by telling him they had photos of him with cocaine and strippers — pictures prosecutors contend don’t exist and that two FBI agents testified they did not find while searching the defendants’ house after their arrest.

Stamos, 46, is expected to testify during the trial, which resumes Tuesday. But it’s unclear if he will address the defense’s claim that he had a romantic encounter with Coss when she was a high school student on a spring break trip to Florida in 2004.

The presiding judge last week ruled that testimony about whether Stamos had an intimate relationship with Coss would not be allowed. Opening statements are not testimony and cannot be considered by jurors as evidence but allow attorneys to outline the case they will present.

Stamos declined to comment to The Associated Press after Monday’s opening statements. But his attorney, William Sobel, issued a statement through publicist Matt Polk denying the defense’s claims.

“The allegations made today in the courtroom by the defendants’ attorneys during opening statements will not be proven because they are simply untrue,” the statement said.

Defense attorney Sarah Henderson and Assistant U.S. Attorney Maarten Vermaat agreed in their opening statements that Coss and Stamos met in Orlando, Fla., in 2004 — shortly after Stamos had separated from his wife, actress and supermodel Rebecca Romijn. The couple divorced the next year.

Henderson said Stamos, now 46, noticed Coss and another girl at a club, asked friends to bring them over and later invited the star-struck teens to his hotel room. Stamos ordered a drink for Coss even after she told him she was 17, Henderson said.

Two women who worked as strippers eventually showed up in the room with a bag of cocaine, she said, and Coss and her friend took a picture of Stamos bending over a table where the drugs had been laid out.

Henderson said Stamos and Coss later kissed on a bed and got into a hot tub together after Stamos undressed and Coss stripped to her underwear. She said Stamos offered to perform oral sex on Coss, but she declined. Florida law makes it a second-degree felony for someone 24 or older to have oral sex with anyone 16 or 17 years old.

Stamos eventually became frustrated, broke a bedpost with his hand and left the room before apologizing and inviting Coss to spend the night, which she did, Henderson said.

For the next few years, they maintained a “flirty kind of relationship” by e-mail, Henderson said.

Vermaat said the two exchanged e-mails “with some regularity” but did not discuss details of the alleged 2004 encounter.

Stamos received two e-mails last fall from a “Jessica T” who claimed she was pregnant and Stamos was the father, Vermaat said. Later came a series of e-mails from a “Brian L” describing allegedly compromising photos and saying they would be sold to tabloids if Stamos did not buy them for $680,000.

Prosecutors contend Coss and Sippola sent the e-mails.

Henderson acknowledged Coss was “Jessica T” but described the e-mails as a ruse to test Stamos’ reaction in hopes of determining whether he was preying on young girls.

Stamos contacted the FBI, Vermaat said. Two agents testified about a sting operation that ended with Coss and Sippola’s arrest at K.I. Sawyer International Airport near Marquette, where an agent posing as a Stamos representative had promised to leave a bag of cash.

“This is really just a get-rich-quick scheme that is based on lies and betrayal,” Vermaat told the jury of eight men and four women.

Defense attorneys said their clients had a right to try to sell photos to Stamos and considered it a legitimate business transaction, not a crime.

Bids for Lindsay Lohan’s pre- and post-jail interviews are coming in at over $500,000. Snooki ditched her pouf. Jude Law sang a karaoke rendition of “Johnny B. Goode” in the Czech Republic. Brad Pitt finally shaved his beard. And though Angelina Jolie vowed she wouldn’t marry him until marriage was legal for everyone, she’s reconsidering upon the request of her six children. Lady Gaga visited her bartender boyfriend, Luc Carl, at St. Jerome’s in the East Village Saturday night, sipping red wine with her bodyguard in tow. Carl’s co-workers, meanwhile, have been instructed to claim they don’t know him.

Rachel Uchitel partied at Dorrian’s Red Hand. Following her breakup from Jake Pavelka, Vienna Girardi was “drunk and all over the place” at a Playboy party. Guy Ritchie stepped out with his new model girlfriend. Christina Milian and singer/producer The-Dream eloped last September, and now they’re splitting up. Spencer Pratt may have plans to crash the Hills finale party. He’s also currently homeless, tweeting, “Booking my room at Roosevelt Hotel Hollywood now that I have no place to live I think I should just move in there today stay near the action.”

Michelle Paterson drew applause from attendees of the Parish Art Museum gala in Southampton, like Donna Karan and Jay McInerney, and explained that her husband was absent because, “He’s been busy in Albany signing 6,681 vetoes to keep spending down.” Melissa Etheridge claims she’s paying all her ex’s bills, though Tammy Lynn Michaels claims Etheridge left her broke. And Kourtney Kardashian’s extreme post-baby diet made her faint.

Lohan Sam Ronson reunion has occurred. Ex-girlfriend Sam Ronson agreed to meet with Lindsay Lohan after being apart for several months. Actress Sam Ronson and Lohan didn’t disclose what they talked about.

Lohan, 24, was most likely looking for some comfort after her toilsome week of legal proceedings On Sunday, the once explosive couple dined on sushi at the Matsuhisa in Beverly Hills. Then the former couple drove away together and ended up at Lohan’s West Hollywood home.

The “Mean Girls” actress has been at the center of a media storm since July 6. That is when a California judge sentenced her to 90 days in jail for violating the probation terms of her 2007 drug and alcohol case. She would be free as a whistle had attended her alcohol education classes.

Ronson, 32, once said that dating Lohan “was more of a headache than anything else.” However, Ronson did come to Lohan’s defense when comedienne Joan Rivers called Lohan “so dumb.” On twitter Ronson stated, “Hey Joan Rivers you have collagen older than Lindsay,” in response to Rivers’s rant. “Pick on someone your own age, oh wait, I guess people that old can’t hear.”

Each week, Ali Fedotowsky is sharing her thoughts about new episodes of The Bachelorette. “You’re going to see me get mad, cry, be happy, stressed out,” she says of her season. After saying goodbye to Ty in Porto, Portugal, Ali writes in about her hometown dates and meeting the families of her four remaining suitors:

I want to start off by addressing a few of the comments on last week’s blog (yes, I read them, and thanks for all of the support. I appreciate every word). It seems as though many of you question whether or not I am serious about finding a husband. I don’t really know how to respond to this other than to ask all of you to have faith in me. I am doing my absolute best to make decisions that are right for me and the guys. I am just a normal person, like all of you, that’s trying to find love.

Now onto this week’s episode! I was glad to be back in the U.S. and moving onto hometowns. Don’t get me wrong, I loved traveling. But I missed the little things about home and I was glad to be back after being away for so long. I also need to comment on how many times I said “amazing” in this episode! (Jimmy Kimmel, I know you are going to get a kick out of the count this week). Let’s just say it really was an AMAZING week . Now let’s talk about these dates:

I had the best time on my baseball date with Roberto. We played in the park for a couple of hours and loved every minute of it! I know I say it every episode, but how hot is Roberto?! Especially in that baseball uniform … I am one lucky girl! I was so thrilled when he gave me his Steeple Cats baseball card. The Steeple Cats are a baseball team in the town next to my hometown. How crazy is it that Roberto and I were in the same town in the summer of 2002 when he played for them?!?! Another fun thing about the baseball card is that it has the name of my local newspaper on the back — the North Adams Transcript. It reminded me of all the clippings my mom has kept of me playing soccer from the newspaper over the years.

Roberto’s dad asked me about personal goals and how I would balance that with his son’s goals. I am glad that I answered him honestly and let him know that Roberto and I would share all responsibilities at home and at work. Being part of a marriage where all responsibility is shared equally is very important to me. I really respect Roberto’s dad for asking me tough questions.

A conversation you didn’t see is the one I had with Roberto’s mom, Olga, who is such a sweet, lovely woman. She actually gave me a crystal heart inscribed with the words “Love Never Fails.” My mom gives me similar things, so this gift meant a lot to me. Roberto’s mom also taught me to cook tostones. I don’t cook, but I would definitely be willing to learn for Roberto . The night ended perfectly. Did you see the way his parents salsa danced together? Such chemistry between the two of them. I know I would have a lot of fun with Roberto’s family.

Onto the Cape. The most important part about my visit with Chris is how being at home relaxed him. He was almost a completely different person. I think Chris was really nervous throughout this journey and that’s why we had a hard time connecting. At home in Cape Cod Chris was completely himself. It was so wonderful to see that side of him. I got much closer to him on this date. I loved that it started at the beach during a rainstorm. There is something incredibly romantic about that. I definitely want to be with a person who can go out in a rainstorm with me and just have fun. Even if it means ruining my boots. Oh well, so worth it! Also, how cute is his dog Jetty?

We laughed about the beer in my purse because I actually had a beer in my purse earlier … long story. Also, I want to clear up the story that I told about the bracelet last week. Chris joked with me that it was my “get-out-of-jail-free card.” We thought it was a funny joke. Luckily, I never had to use it. Chris’s dad is an incredible person. I am so grateful to have the chance to get to know him. I love that their family slogan is “love is the only reality.” I think that is especially relevant in this situation.

Next stop, Wisconsin. Kirk‘s dad and stepmother were also great. I know his dad’s basement was a little much for a lot of people, including myself, but I have to respect him for doing what he loves. After I got over the initial shock of all the stuffed animals, I got to sit down and have a really nice chat with Kirk’s dad. He even showed me how to put a deer eye in a foam deer head. If I can’t find a job after the show is over, Kirk’s dad said there is a future for me in taxidermy.

Kirk’s grandma reminded me so much of my grandma. I heart her. My grandma also cared so much that everyone at the table was happy and content before she could even think about eating her food. All the women in Kirk’s life are great. I’m sure they gave him lots of love when he went home.

Last but not least, we take on Chicago! I absolutely love Chicago, so I was really excited that this was my last hometown date. To be honest, this visit was one I was most looking forward to so I was a little bit disappointed when Frank seemed off at the start of our date. But I didn’t think much of it because Frank was always concerned about the process so I just thought he needed reassurance and it would pass. I was surprised to hear Frank say that love is complicated. I’m hoping that my relationship with my husband is the one thing in my life that isn’t complicated. Yes, there will be tough times and we will have to work hard at it, but I never want to wonder if that person is right for me.

You didn’t see my conversation with Frank’s dad. He told me he doesn’t think Frank is ready to be in a committed relationship. I was unsure what to think about those comments, but was grateful that his dad was being completely honest with me. When he first told me this, I thought he was talking about Frank not being financially ready to settle down, but as you can see in the previews, that wasn’t the case. I had a great time with Frank’s family. They are super funny and easy to get along with. I was laughing the entire time I was with them.

It was incredibly difficult for me to say goodbye to Kirk. I didn’t want him to feel like his family had anything to do with my decision. His family was great. Last season when I was on The Bachelor, my dad was at my hometown visit and met Jake but it was never shown on TV. I remember my dad calling me and asking, “Did I do something wrong?” It was so heartbreaking to hear him say that. I don’t want Kirk’s family to feel like they did something wrong. In fact, since I am unable to speak to them, I would like to take this opportunity to thank them for inviting me into their homes. I really enjoyed meeting all of you. You’re a great guy, Kirk. One of the strongest men I have ever known