Lady GaGa rang in 2010 on stage performing for stars including Hayden Panettiere and Chace Crawford at a special New Year's Eve (31Dec09) party in Miami, Florida.
The pop star entertained a celebrity-filled crowd at Miami Beach's Fontainebleau Hotel with hits like Bad Romance and Poker Face, before carrying on the party at the hotel's LIV nightclub.
Entourage star Kevin Connolly, former Desperate Housewives actor Shawn Pyfrom and ex-'N Sync singer J.C. Chasez were also in attendance.
GaGa was rumoured to be joining reunited cult rockers Phish for their New Year's Eve concert in Miami but that proved to be untrue.