Jessica Simpson is Still Smiling

A super smiley Jessica Simpson (in Hervé Légér) seems unaffected by her break-up with John Mayer on Friday in France at a party promoting her forthcoming flick Major Movie Star for the Cannes Film Festival.

Also on deck to lend their smiley support were Jessica‘s manager parents, Joe and Tina Simpson.

12+ pictures inside of of Jessica at Cannes…