"Humor is one of the sexiest qualities a person can have," says the Saturday Night Live star, 35. "There's that phrase, 'comedy crush,' where you may not be that attracted to someone physically but, because of how funny they are, you have a little bit of a crush on them. Their humor makes them more attractive. Growing up, my crushes were John Ritter and John Cusack. And yeah, I have a comedy crush on Bill Murray."