The "Silver Linings Playbook" actor showed off not one, not two, but five nipples on "Ellen" Tuesday. Cooper revealed a third nipple on the left side of his chest, a fourth on his right forearm and a fifth on his right leg.
"Do you remember when you asked me last time if I could take my shirt off?" Cooper asked DeGeneres. "I remember thinking, 'Well I don't know if I should reveal this much about myself' … I didn't do it because I'll show you why."
But after making the mostly female audience scream, the 37-year-old said it was just a joke on DeGeneres, who's famous for pranking her celebrity guests.
Cooper also joked about losing People's "Sexiest Man Alive" trophy to Tatum.
"I've been texting him," Cooper said. "I know that he's got a really busy career so I think that's why he hasn't. I want to just talk to him about it and maybe take him to lunch."