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Theme: Master Mix (combining 2 songs from different artists) (first round), Judges' Choice (second round)
Group performance: Master Mix: "Bitter Sweet Symphony" by The Verve, "Hollaback Girl" by Gwen Stefani, "Baba O'Riley" by The Who, and "Last Friday Night (T.G.I.F.)" by Katy Perry
First Air Date : Dec 14, 2009
Last Air date : Dec 17, 2014
Episode : 28 Episode
Season : 5 Season
Runtime: 120:85 minutes
Studio: NBC
Country: United States of America
Crew: