Christina Aguilera belts out a track while Charli XCX flaunts her figure at the amfAR charity gala

Christina Aguilera, Ashley Graham and More Dazzle in Dramatic Gowns at amfAR Gala in Cannes

Christina Aguilera puts on a very busty display in a plunging gown at the Cannes Film Festival

Christina Aguilera Postpones Music Release After Texas Shooting: ‘My Heart Breaks’