Behind-the-scenes videos are fast-becoming more interesting than the ad campaigns themselves. Having trawled through videos from the likes of Kate Moss (Longchamp), Abbey Lee (Pop) and Lindsay Lohan (Purple), we were starting to get a little jaded by videos of the sort. That was until Twilight uber-hunk Kellan Lutz came on the screen.

Starring in the latest Calvin Klein ads, Lutz shows off his rippling muscles in a way that reminded us very much of Mark Wahlberg in those Calvin ads of the '90s. Lutz also uses the film to tell us a little bit about himself. He loves to swim and snowboard. He's a "boxers, not briefs man". He loved wearing nothing but the underwear on the shoot because, "Calvin Klein underwear just holds you together." All we can say is R-Patz who?