Jennifer Lopez is topless, tatted and titillating in her sexy new video for "Follow The Leader."

The upbeat reggaeton-inspired track, featuring Wisin y Yandel, definitely delivers a catchy beat.

Looks like JLo has another hit on her hands!

Do vampires not shower?!

Kristen Stewart stopped by Jimmy Kimmel Live on Wednesday to tape a segment with the funny man host, and let's just say "dress for the occasion" isn't in her vocabulary.

The Twilight star donned some interesting duds on her way out of the studio, and if she's going for the homeless chic look, she nailed it! From the messy, unwashed hair to the dirty white t-shirt, Rob Pattinson's leading lady has definitely seen better days...

We can't blame the 25-year-old actress, though! The brunette beauty has been working nonstop. Last week she was in Vancouver doing Breaking Dawn Part 2 reshoots, and she's also making the rounds promoting Snow White and the Huntsman.

We're crossing our fingers she enlists a stylist for her upcoming press tour!

MTV

Beastie Boys Rapper MCA, who's real name was Adam Yauch has died from cancer at age 47, after he announced in 2009 that he was receiving treatment for a cancerous parotid gland and a lymph node.

The Brooklyn-born rapper, who co-founded Beastie Boys in 1979 with Mike D, and Ad Rock, had undergone surgery and radiation therapy for his cancer, but as of now it is unclear if his death was related to his battle with cancer.

Yauch was a pioneer in the rap and music industry, and was the mastermind behind some of the most iconic albums in hip-hop history, which won the group multiple Grammys.

They Beastie Boys were inducted into the Rock and Roll Hall of Fame earlier this year.

Yauch is survived by his wife and daughter.

Proud papa Simpson is a grandpa for the second time, and he's all a-Twitter with excitement!

Jessica Simpson’s father called the birth of baby Maxwell Drew "a miracle," after the singer announced the arrival of her first child with fiance Eric Johnson, on Tuesday.

Joe shared via Twitter:

"Proud PaPaJoe Beautiful baby girl... What a miracle!"

The entire Simpson fam, including little sis Ashlee, were at the hospital in LA when Jess gave birth to the little girl, who weighed in at a healthy 9lb 13oz.

The proud new mom also announced the news by posting a big banner on her official website, with the caption, "Creating a family is the best thing I've done in my life, I really hope I can be half as good of a mom as my mom has been to me."

Congrats!

Linda Evangelista kept her look conservative while heading to a Manhattan family courtroom to face her ex French billionaire Francois-Henri Pinault.

The 46-year-old supermodel is seeking child-support payments of $46,000 per month for their 5-year-old son. Evangelista claims Pinault "suggested she terminate the pregnancy."

Pinault, who also has a child with his current wife Salma Hayek, said in court that he was "not involved in the decision" as to whether Evangelista kept the baby.

As for how Evangelista reacted to Pinault's alleged abortion insinuations, her lawyer told the courtroom, "She would support the child herself, since he had made it perfectly clear to her that he had no interest in doing so."

Evangelista claims she has been supporting the child on her own.

After seven long months of keeping her ex-hubby's last name as her Twitter moniker, Demi Moore has finally changed her name from @mrskutcher to @justdemi, signifying the official end of their six-year marriage.

Moore announced the news with the Tweet:



The Striptease star first asked her 4.9 million followers for suggestions for a new name in April, Tweeting: "Time for a change, Twitter name change. Any suggestions? Collecting all the suggestions! Thank you. Keep them coming!"

Moore had previously defended her decision to keep @mrskutcher as her username last year, confessing: "Changing my Twitter name isn't a top priority right now. Sorry it bothers so many of you. Should I not tweet until I do? Does it really matter?"

Demi took a three-month break from Twitter in January, when she entered rehab at Cirque Lodge in Sundance, Utah. Moore was reportedly being treated for an eating disorder and addiction issues, but resurfaced in April, with the Tweet, "Testing. . ."

What do you think of Miss Moore's new Twitter name?

Paris Hilton is the queen of cut-outs!

The sexy heiress rocked a killer LBD while leaving Mr. Chow in Hollywood. Love the pink fur, P.

So chic!

January Jones looked like a walking optical illusion as she stepped out to host an exclusive screening of artist Yves Klein’s La Revolution Bleue at the Paris Theatre for Christie’s auction house in NYC, on Thursday evening.

Equally stunning, Victoria Silvstedt stopped traffic in her bright yellow skintight dress, paired with tan heels and light pink lipstick -- the perfect ensemble for a Playboy Playmate!

The Mad Men star was also given the honor of presenting the artist's painting, entitled FC 1, which is expected to sell for a whopping $30 million when it goes up for auction on May 8, with a portion of proceeds going to Oceana, the world’s largest international ocean advocacy organization.

Check out the $30 million piece of art, after the jump ...