Chris Brown went clubbing in Los Angeles on Saturday night with a handful of models, but quickly ditched the leggy ladies in tight dresses for the company of “little people.” A source tells us the R&B singer got up on stage at Beacher’s Madhouse at the Roosevelt Hotel and started break-dancing with “four or five little people onstage, one of them dressed as [an] Oompa Loompa and another as Alvin from Alvin and the Chipmunks. The crowd went nuts,” said our spy.