Calvin Klein X Underwear just released its newest ad campaign featuring Kellan Lutz, Mehcad Brooks, Fernando Verdasco, and Hidetoshi Nakata. The four gents tug at their tighty-whiteys' waistbands while spitting out expletive-ridden phrases in the typical oh-so-shocking cK fashion. WATCH: And now a throwback to Marky Mark in 1992: So, what do you think? More on Video