Stacy Keibler celebrated her 33rd birthday at Provocateur on Friday night with a group, but without her beau, George Clooney. Fellow clubbers tell us she arrived at 11:30 p.m. with pals and held court at a table with balloons. One witness said, “Stacey looked happy, trim and fit, wearing tight turquoise pants and a blazer. She celebrated with 12 friends, nine of which were guys, and was drinking vodka and Champagne.” She and Clooney, who is away working, dashed rumors of a split last week.