RIHANNA'S EXES PARTY IT UP IN NYC!

Chris Brown and Drake once had a beef over their back-to-back dating of Rihanna last year, but they've clearly put their differences in the past. A source tells us the duo ripped up SoHo hot spot Greenhouse together on Tuesday night with a little help from their friends. After Lil Jon and T.I. did an impromptu back-and-forth at the nightclub, Brown surprised the Corona-cheered crowd with a five-song set and repeated shoutouts to "my man, Drake" when the deejay played Drake's tunes for the throng.