David Letterman had Kourtney and Khloe Kardashian on The Late Show last night and although the notoriously cranky host seemed fairly uninterested in talking to the two reality stars he ribbed Kourtney about her boyfriend from hell, Scott Disick, saying that he appears to have, "a little bit of punk in him." Just a little? Next up, Stephen Colbert thinks Helen Thomas would have fared much better with critics over her notorious comments if she only had a talk radio show, and Jon Stewart rips the White House press corps for fighting over Thomas' seat in the briefing room and engaging in Super Soaker battles with members of the administration instead of holding politicians accountable for their actions. Finally, Jimmy Fallon impresses Jessica Biel with a Pee-Wee Hermanesque tandem bicycle ride. Watch our compilation to see what you missed.