Tina Keeps Her Sense of Humor Intact on The Late Show

Tina Fey waved to fans as she headed into The Late Show studios last night in NYC. She's out making the rounds to promote 30 Rock's fourth season, which kicks off tonight with another Steve Buscemi cameo! Tina was hilarious, as usual, as she and Dave discussed what it takes to get her ready for a magazine cover shoot and being a late bloomer who didn't lose her virginity until she was 24. Leave it to Tina to have a sense of humor about such personal topics, and make sure to check out the funny video after the jump.

To see video of Tina's appearance, just read more.