Blige sang several of her most famous songs including "No More Drama" and "Family Affair" at the Avalon nightclub on Thursday night to support the (RED) campaign that raises money to fight AIDS and HIV. She has supported the charity for years.
The singer gave a few emotional speeches where she talked about the importance of giving back.
"All those people we are rocking for are going to be just fine," Blige said before performing her hit single "Just Fine."
After her set, musician Skrillex acted as DJ, playing in a VIP area at the Belvedere-sponsored pre-Grammy event that also included singer Kelis, actress Malin Akerman and Oscar winner Forest Whitaker.
The Grammys will be held Sunday at the Staples Center in Los Angeles.
