Is Justin Timberlake nude in his movie friends with benefits.?

Um I am on the fence about seeing this movie but when I heard that Justin Timberlake is doing his first nude scene hell to ya I am going to a midnight showing probably. Anyway has anyone seen an early screening of the movie how many times is he naked in the movie and is he naked naked or just shirtless I heard he shows his butt. Either way I am seeing this hilarious movie. Anyone else anticipating,