by POPSUGAR Celebrity 1

Calvin Klein still brings the hotness with its ads, which currently star Kellan Lutz. He has some big shoes to fill considering that Mark Wahlberg set the sexy bar so high with his legendary shirtless campaigns from back in the '90s. In this week's Flashback Friday, we're taking a walk down memory lane to when Marky Mark was still funky and also the face — and body — of CK underwear with Kate Moss. Happy Friday!