Mary J. Blige hit the stage on Thursday night to kick-off Grammy weekend in Hollywood.

The Queen of Hip-Hop Soul was the headline act at the (Belvedere) RED Pre-Grammy Party at the Avalon. She performed for a star-studded crowd, including Forest Whitaker and Chelsea Handler.

Flip through our slideshow below to see who else came out, and find out who graced the stage as a special for party goers!

—Sonya Eskridge