Watch Lady Gaga And David Letterman’s Full 15 Minutes Of Banter

David Letterman and first-time Late Show guest Lady Gaga, who’s out in full promo forcebehind just-released album Born This Way, basically spent a full 15 minutes ribbing each other on air last night. “You and I are very different,” Dave said to the “Heavy Metal Lover”singer at one point. “I have never thought to myself, I’m just going to wear my underpants.” Gaga quipped back, “Why not? I’m sure you’d look nice if you just took your pants off.” Wow. Excuse us while we go take an ice-cold shower. Watch the playful one-on-one below.