Paris Hilton, wearing a sexy black dress and headband, glammed it up for Us Weekly's Hot Hollywood Party at Eden in LA.

Ms. Hilton, who took along auntie Kim Richards, made her way through the crowds of photographers and fans ... and she managed to keep a smile on her face. Loves it!

Check out our gallery below to see all the stars in attendance. See Joe Jonas making a quick getaway ... after the jump.