Britney Spears partnered up with Black Eyed Pea's will.i.am (only her second collabo ever!) for a track entitled "The Big Fat Bass", which Will teased a snippet of this morning.

This is the third "tease" that Britney has released in recent weeks, albeit the only one not from her forthcoming album, Femme Fatale.

Britney, singing backup for the Pea's frontman coos "I can be the treble, baby, you can be the bass," in the short tease for the new single.

On his blog, will.i.am writes, "thank you britney for collaborating it was a pleasure working with you. thank you for trusting my instincts. you're a doll. i look forward on working with you again... its an honor because you rarely do collaboration... im your second..."

Actually her collaborating on someone else's track isn't the only out-of-character thing about this -- take a listen below and see if she reminds you of some other pop star whose prone to making guest appearances...

If looking good is the best revenge, Taylor Swift got hers last night on exes Jake Gyllenhaal and Joe Jonas at the Vanity Fair post-Oscar Party, where she showed off a hot little bod in a gold strapless mini-dress.

Taylor stayed away from the boys but mingled with gal pals including Emma Stone, Selena Gomez and Gwyneth Paltrow, who set up the songstress with Jake Gyllenhaal.

But Taylor wasn't the only golden girl who was confronted with ex-boyfriends at last night's biggest bash... (click below to see who else he ran into!)

Lady Gaga debuted her music video for Born This Way this morning, and we're really not sure how we feel about the intro, but Mother Monster's toned bod certainly looks hot! But lose the built in shoulderpads, eh?

Speaking of new looks, click after the jump to see Gaga's latest dye job!

Co-host James Franco didn't bring his A-game to the Oscars last night, and when it came time to attend his own after party, he completely bailed!

Seth Rogen, Kevin Spacey and several other stars showed up to his bash at the Supper Club, and Us Weekly reports that Franco didn't even bother dropping by to say hello! The actor boarded an plane to NYC immediately after the ceremony, and he even had the audacity to post pictures from the airport on his Twitter page with the caption, "It was fun! Have to be back to class."

And we weren't the only ones who thought Franco totally failed as a host! Of his totally uninspired job, The Hollywood Reporter remarked, "The 83rd Annual Academy Awards will likely be remembered as the night James Franco couldn't act like a host...Anne Hathaway at least tried to sing and dance and preen along to the goings on, but Franco seemed distant, uninterested and content to keep his Cheshire-cat-meets-smug smile on display throughout."

Madonna and her teenage daughter Lourdes wowed on the red carpet at the Vanity Fair post-Oscar party last night, but not for the reasons you'd think! While both of the ladies looked gorgeous, they left little to the imagination with their risque outfits. Madonna covered up her modesty with a pair of fishnets and a see through black dress, and judging from this picture, little Lola knew she was rocking a dress that was a wee bit too short:



Click the massive gallery below to check out everyone from Reese to Jake to Natalie at the VF bash!

In Jimmy Kimmel's annual post-Oscar show, the talk show host - in addition to chatting with guest star Tom Hanks - showed a mock exercise video (entitled Hottie Body Humpilates) featuring his alter ego ("Jimmy K") and many sexy Hollywood starlets working on their fitness...

The long list of actresses included in the vid? Scarlett Johansson, Jessica Biel, Jessica Alba, Minka Kelly, Eva Longoria, Emily Blunt, Sofia Vergara and Lindsay Lohan. Wow! Lucky Jimmy.

Check out the entire parody above - it goes on for roughly 7 minutes! Lindsay doesn't show up until the very end, but she did manage to poke fun at her stolen necklace court case.

Question is, did LiLo make you LOL?

Getty

It was an exciting night -- perhaps the biggest cliffhanger was ... would Natalie Portman win for best actress in Black Swan and, as evidenced by the photo above, she took home the prize.

The other big cliffhanger? Would The Social Network take home the prize for best picture? It did not ... that went to The King's Speech.

Here's the list:

1. Best Picture: "The King's Speech."
2. Actor: Colin Firth, "The King's Speech."
3. Actress: Natalie Portman, "Black Swan."
4. Supporting Actor: Christian Bale, "The Fighter."
5. Supporting Actress: Melissa Leo, "The Fighter."
6. Directing: Tom Hooper, "The King's Speech."
7. Foreign Language Film: "In a Better World," Denmark.
8. Adapted Screenplay: Aaron Sorkin, "The Social Network."
9. Original Screenplay: David Seidler, "The King's Speech."
10. Animated Feature Film: "Toy Story 3."
11. Art Direction: "Alice in Wonderland."
12. Cinematography: "Inception."
13. Sound Mixing: "Inception."
14. Sound Editing: "Inception."
15. Original Score: "The Social Network," Trent Reznor and Atticus Ross.
16. Original Song: "We Belong Together" from "Toy Story 3," Randy Newman.
17. Costume Design: "Alice in Wonderland."
18. Documentary Feature: "Inside Job."
19. Documentary (short subject): "Strangers No More."
20. Film Editing: "The Social Network."
21. Makeup: "The Wolfman."
22. Animated Short Film: "The Lost Thing."
23. Live Action Short Film: "God of Love."
24. Visual Effects: "Inception."

Getty

What a stunning pair! New parents Penelope Cruz and Javier Bardem walked the red carpet hand in hand ... and with a smile.

With their one-month-old son Leo at home, the couple probably couldn't wait for some adult time, and what better place than the Oscars!

The glowing mama, wearing a L'Wren Scott gown and Jimmy Choo heels, was the perfect arm candy for her sexy, Oscar nominated hubby. Mr. Bardem was nominated for his role in Biutiful ... a movie that was also nominated for Best Foreign Film.

Find out if the sexy actor, and his film, won the Oscar ... after the jump.