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.

Glow sticks, hand stands, emotive dancing and snazzy camera effects—it’s all here in a video the VMM-266 (REIN) stationed in Afghanistan made set to Britney Spears’ “Hold It Against Me.” Hell, some might even argue that it’s far more entertaining than Brit’s own video for the song! The Femme Fatale songstress herself posted a clip of the video on her Facebook walllast night and gushed, “I am in LOVE with this… I always knew our soldiers were fierce! Thanks for everything you guys do.” Watch the Marines get their Britney on below.