'Coccyx is the scientific term for your butt bone': The live '30 Rock' was awesome

30 Rock delivered its second live episode on Thursday night, taking the show out of its Queens soundstage (yes, 30 Rock isn't actually shot at 30 Rock) and bringing it to Rockefeller Center. As was the case with the first live 30 Rock, this highlight of the episode was the number of guest stars it brought in. Jimmy Fallon, Jon Hamm, Donald Glover, Amy Poehler and many more Saturday Night Live and NBC stars popped into this episode.

As we saw when Fallon hosted SNL earlier this season, the previous SNL cast and the current SNL cast remain close, something that apparently extends to 30 Rock. Hamm is an SNL and 30 Rock favorite too, while Glover got his start as a 30 Rock writer and is currently a star on NBC's Community.