Less is more, especially when it comes to clothes! This is the rule of thumb embraced by the iconic fashion house Calvin Klein, which has become more well-known in recent years for what its models aren't wearing than for what they are. Some of Hollywood's hottest stars have modeled Calvin Klein's famous underwear, and as if seeing these CK models shirtless isn't enough, we also have their nudest and sexiest scenes. So who are we talking about here? Marky Mark himself acting as a porn star in Boogie Nights, recent CK addition Aaron Taylor-Johnson exposing his huge penis in A Million Little Pieces, Jacob Elordi showing his butt in Euphoria, and Michael B. Jordan in his nude debut in A Journal For Jordan. If you want even more, check out the full playlist for Nick Jonas' hairy ass in Careful What You Wish For, Canadian fuckboys Justin Bieber and Shawn Mendes in their legendary black and white Calvin Klein shoots, and so so much more! You want to know what comes in between these guys and their Calvins? Nothing.