JAY LENO: Now, I gotta ask you something, I get this little note: "Jay, in Jennifer's dressing room, don't put any caffeine or sugar." What was that all about?
JENNIFER LAWRENCE: It was from my past experience here, where I didn't get any sleep--it was like two years ago, I think--yeah, I didn't get any sleep and I was like, 'Oh my God, I'm going to be so boring on Jay--I don't want to be boring, I don't want to be dull. So I chugged four red bulls and had some coffee. You were like, 'And presenting Jennifer Lawrence..' and I stormed here and poor Jesse Eisenberg was talking about his OCD, and I was like, 'Dude, your OCDs are awesome!!' And he's like, 'I've actually been suffering from it my whole life--' and I'm like, 'I don't care! HAHAHAHA.' I was nuts.