Alec Baldwin, Tina Fey get "live-er" in '30 Rock' promo video - watch
The pair preview 30 Rock's second-ever live instalment by promising that tonight's episode will be even "live-er" than the first.
The special will be shot in Saturday Night Live's Studio 8H in Rockefeller Centre, where Fey served as a cast member and writer for nine years.
Fey has promised some "exciting cameos" for tonight's 30 Rock, including the possible returns of some "friends" of the show.
The popular sitcom previously aired a live episode in October 2010, also shot from Studio 8H. Julia Louis-Dreyfus, Bill Hader, Matt Damon and Jon Hamm all made cameo appearances on that show.
30 Rock airs its live episode at 8.30pm on NBC on the East Coast. The cast will perform the show again three hours later for the West Coast.
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