>> you better be as good as letterman. >> i'll give it a shot. >> happy music, and then i go in my dressing room. >> you're on, mr. o'brien. >> now or do i have a minute? >> right now. >> the first night we were walking on air the entire show. >> we're on tv. calm yourselves. we have to act like professionals now. you can't act like guys that are too young on tv. >> letterman was ironic. that was the answer to carson. this show needs to be sillier. >> we did this bit where i played bill clinton. maybe my favorite moment in my whole career. >> what you got there in that mug? >> you wouldn't be interested, mr. president. just some hot, creamy cocoa. >> cream and cocoa, i love it. let's have some. >> just the kind of idiocy we could have never done on "saturday night live." >> all right. here you go, mr. president. >> all right.