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Charlize Theron, Robert DeNiro

Dave Hogan/Getty Images for Atlantis, The Palm

Is Dubai the new Vegas? It certainly seems like it from the looks of the A-listers who are in town for Atlantis, the Palm's grand opening.

Charlize Theron and Robert DeNiro were just two of the celebs at the posh party. Mary-Kate Olsen hung with Mischa Barton during dinner, and Lindsay Lohan and Sam Ronson hit the carpet with Sam's mother, Ann Dexter-Jones, in tow.

Kylie Minogue performed for a packed house, including Gerard Butler, Janet Jackson, Jermaine Dupri and Lily Allen, followed by a lavish fireworks display. See the snaps for yourself in our Party Pics: Global gallery.