Selena Gomez was on David Letterman last night to promote her coed white trash gangstaaaa flick, "Spring Breakers." David Letterman asked Gomez about her relationship with Justin Bieber and BURNED him. Wait for it, wait for it, wait for it.....

Love that fist-pound, Dave. But damn, dagger to the heart, Selena. Way to make the Biebs cry. That makes you, like, an American hero or something. Can't wait for the Biebs punky response on Twitter. I'll get the popcorn...