Mary-Kate Olsen vs Spencer Pratt

Mary-Kate Olsen was on David Letterman‘s chat show last night and the Full House alum had some not so flattering things to say about The Hills villain Spencer Pratt.

Seems like the two of them went to the same high school and she experience his douchebagery firsthand!

Plus, the interview between MKO is so uncomfortable, creepy, awkward, strained….it’s a great watch!

CLICK HERE to check it out!