Mary J . Blige brought the house down on Thursday night (Feb 9) at the Belvedere Red Pre-Grammy Party at Avalon in Hollywood, California. The event was a success, and benefited the Global Fund to fight HIV/AIDS in Africa. While guests waited for MJB to hit the stage at 11p.m, they sipped on Belevedere favorites like Crimson Squeeze and Pink Mojitos. MC Lyte, Tamar Braxton, Kelis, Chelsea Handler, Paris Hilton, Sheila E., Forrest Whitaker and others were in attendance. Peep Mary's performance below!!