Watch: All the Performances From Glee's Britney Spears Tribute: Season 4, Episode 2: "Britney 2.0" (VIDEO)

Miss out on any of the performances from Glee Season 4, Episode 2: "Britney 2.0" — or just want to watch them all over again? Look no further. It's Britney, b*tch. And it's fantastic.


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