The Tribeca Film Festival will open with Cameron Crowe's documentary "The Union" and a performance by its British subject, Elton John.

Opening night of the 10th annual Tribeca Film Festival was announced Wednesday. Crowe's film, which depicts the recent collaboration between John and Leon Russell, will premiere April 20 at a free, outdoor screening at the World Financial Plaza.

Tennis star Serena Williams underwent "emergency treatment" Monday, days after doctors discovered a blood clot in her lungs, People magazine first reported.

Spokeswoman Nicole Chabot told the magazine that Williams "underwent emergency treatment for a hematoma suffered as a result of treatment for a more critical situation."

Serena's statement… after the jump.

A New York City law firm says Prince owes more than $700,000 in legal fees for services that included helping to settle financial obligations to his former wife.

The firm is suing the "Purple Rain" singer in state Supreme Court in Manhattan.

Christina Aguilera has signed on to be a coach on NBC's upcoming singing reality competition, "The Voice."

The news comes just a day after Aguilera was arrested for public intoxication, but not charged.

Megan Fox is posing in a sexy new Armani video spot – in her underwear.

The sizzling new campaign video is for Emporio Armani and Armani Jeans' Spring/Summer 2011 campaign, according to Just Jared.

Nicole "Snooki" Polizzi has watched herself on episodes of MTV's "Jersey Shore" – just to "get the ratings," of course! — and she's none too pleased with the often drunken images she sees.

Aretha Franklin says she's lost 85 pounds as part of an ongoing effort to drop weight.

The legendary singer said in a taped interview that aired Wednesday on "The Wendy Williams Show" that she's been trying to shed pounds ever since looking at pictures of herself and deciding she was "entirely too fat."

By now, all of us have heard at least some of Charlie Sheen's self-described 'tsunami of media on a mercury surfboard.'

In all of my years covering Hollywood, I have never witnessed a celebrity whose life seems to be unraveling in the public spotlight quite like Charlie Sheen.

I am not here to judge whether Charlie is "WINNING" his mission to right some wrongs. Or, what the side effects are of being on the drug called "Charlie Sheen." I do know I can't get this head-spinning story of Charlie uncensored off my brain. I need to take a moment and relax and be thankful for the sanity in my life.

Charlie Sheen recently said he's only addicted to "winning" – and Donald Trump agrees.

"[Charlie] is not doing so badly — I thought he'd be a total wreck," Donald told Billy Bush and Kit Hoover of the embattled star's status in an interview on Access Hollywood Live on Wednesday. "I think Charlie's doing not so bad. So far, Charlie's a winner!"

The Oscar red carpet was really varied when it came to hair… we saw everything from stick straight hair, to chic ponytails and loose up-dos.

Here are the step-by-step tips to recreating the looks of three glamorous stars directly from their stylists.