Beyonce wore Balmain to the premiere of her movie " Obsessed" but Lady B seems to be obsessed with Balmain as she's been wearing a lot of Balmain pieces for the past week. I think she looks ravishing in this black sequined mini dress which is accompanied by a fabulous train. I love it Rihanna, eat your heart out. Christophe Decarnin should seriously win the designer of the year award .