Watch Aaron Sorkin's Brilliant 30 Rock Cameo
Matt Cherette · 03/24/11 09:29PMOn tonight's 30 Rock, Liz Lemon got news that TGS was going into a forced hiatus due to Tracy Jordan's absence. So, Liz explored other opportunities—like Nick Lachey's The Sing-Off. And, whoa: Aaron Sorkin was there, too!