"The Sing-Off" host Nick Lachey joined expectant "30 Rock" star Tina Fey on the red carpet. Maybe they'll collaborate on a crossover episode this season! We'd love to see Tina and Alec Baldwin sing a tune ... Jamie McCarthy/WireImage.com - May 16, 2011
TV Stars Strut Their Stuff
Tina Fey, Christina Aguilera, Joshua Jackson, and others hit promote their fall TV shows in NYC.