Fresh off her performance as an unrepped New Face at Just For Laughs in Montreal, Katie Hannigan made her late night stand-up debut on The Late Show w/Stephen Colbert. She spent much of her set showcasing her weirdness and dark jokes for "someone who looks like they own a muffin shop." Hannigan revealed even more about herself including how she gets creative with her healthcare and how her previous life as a school teacher taught her a few things about children. All in all, pretty helpful if you ask us.