03/28/2008 02:46 am ET Updated May 25, 2011

Inside Oscar After Parties: Absinthe, Dancing, Orlando & Rumer Rumors

Absinthe flowed and Diddy was on the mic at Madonna's bash:

Madonna's spectacular gathering at her manager Guy Oseary's Westside Hills home Sunday night drew Tom Cruise and Katie Holmes, fresh-out-of-rehab Eva Mendes, Owen Wilson, Christian Slater, Ellen DeGeneres and Portia de Rossi (who came from Elton John's fund-raiser), Demi Moore and Ashton Kutcher and Cameron Diaz, all of whom boogied to music by DJ JusSke.

"There were Le Tourment Vert absinthe fountains flowing all night - it was insane," said one partygoer. "Diddy grabbed the mike rallying everyone to dance. Elton John and David Furnish were getting down," said our source.

Javier and his fellow cast celebrated at the "No Country For Old Men Party":

Best Supporting Actor winner Javier Bardem was doing his finest AC/DC impression, lip-synching wildly to "You Shook Me All Night Long." As he careened past with a Stella Artois in his hand I got off one silly question ("How do you feel?" "Good!") before he bounced back to the side of Penelope Cruz, who by a considerable margin was the most sober person in the room.

Josh Brolin was holding court in a side booth, fending off both male and female admirers. But when Nancy Sinatra's "These Boots Were Made for Walking" played, he turned to the hottie on his left (who happened to be his wife, Diane Lane), and they did a little Eskimo-kiss dance with their noses, which was the cutest thing you've ever seen.

Javier then went to Prince's:

Best Supporting Actor winner Javier Bardem changed into beat-up jeans, an old T-shirt and baseball hat for the party, but still carried around his Oscar. "He played pool for hours," according to our witness. He also danced with Penelope Cruz, who stayed in her gown all night.

Orlando Bloom showed up with Bruce and Demi's daughter:

Orlando Bloom and Rumer Willis arrived at Prince's place together, but "acted weird" the rest of the night - chatting closely with each other, then avoiding one another. Bloom is said to be dating Victoria's Secret model Miranda Kerr, who was nowhere in sight.