That was during Seth MacFarland's "We saw your boobs" number during the Oscars, which is why everyone looks so horrified. But JLaw was happy cause this was when he said "we haven't seen Jennifer Lawrence's boobs at all."
Jen: Yeah!
Glen Close: Oh my gahwd!
Gray Haired Man: Her? Really?
Purple Dress: You voted for her, didn't you? You bastard...
Black Dress: Hmph, what that girl did to win...
Glen Close: Oh my gahwd!
Gray Haired Man: Her? Really?
Purple Dress: You voted for her, didn't you? You bastard...
Black Dress: Hmph, what that girl did to win...