The Cannes Film Festival is officially in full swing, and one celebrity who isn't holding back when it comes to enjoying the spotlight is Justin Timberlake [1]. The singer and actor touched down in the South of France earlier this week and wasted no time getting into the spirit; Justin and his Trolls costar Anna Kendrick [2] kicked off the glamorous festival with a fun (and colorful) photocall, where Justin couldn't help but bust a few moves [3] with some lady trolls on the red carpet. During the event, the pair also hit the stage to perform a beautiful rendition of Cyndi Lauper's "True Colors" [4] — and later that evening, Justin slipped into a Tom Ford tuxedo to join Anna for the star-studded opening ceremony [5]. See all of Justin's memorable moments in Cannes so far, then check out the most gorgeous photos from festivals past [6].