Mamma Mia (30 Rock)

"Mamma Mia" is the 21st episode of the third season of the American television comedy series 30 Rock, and the 57th overall episode of the series. It was written by co-executive producer Ron Weiner and directed by series producer Don Scardino. The episode originally aired on NBC in the United States on May 7, 2009. Guest stars in this episode include Alan Alda, Steve Buscemi, Stuart Margolin, Keith Olbermann, Clayton Dean Smith, and Michael Benjamin Washington.

In the episode, Jack Donaghy (Alec Baldwin) begins to search for his biological father with help from Liz Lemon (Tina Fey). Meanwhile, Tracy Jordan (Tracy Morgan) introduces his supposedly illegitimate son (Washington) to the cast and crew of the fictitious show The Girlie Show with Tracy Jordan (TGS), but some question his intentions. At the same time, Jenna Maroney (Jane Krakowski) and Liz fight for attention when Jenna gets public recognition for a comedic sketch Liz wrote.

"Mamma Mia" has received generally positive reception from television critics. According to the Nielsen Media Research, the episode was watched by 6.2 million households during its original broadcast. Ron Weiner and Alan Alda received Primetime Emmy Award nominations for Outstanding Writing in a Comedy Series and Outstanding Guest Actor in a Comedy Series, respectively, both for this episode.