Rachel performs on Glee. "A Katy or a Gaga" is the fourth episode of the show's fifth season.
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Blaine's obviously more of a Gaga on Glee. "A Katy or a Gaga" is the fourth episode of the show's fifth season.
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Artie performs with wings on Glee. "A Katy or a Gaga" is the fourth episode of the show's fifth season.
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Becky watches a performance in costume on Glee. "A Katy or a Gaga" is the fourth episode of the show's fifth season.
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Sam performs a number with wings on Glee. "A Katy or a Gaga" is the fourth episode of the show's fifth season.
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Sam directs the newest performance on Glee. "A Katy or a Gaga" is the fourth episode of the show's fifth season.
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Ryder, Artie, Blaine, and Marley are directed during a new performance on Glee. "A Katy or a Gaga" is the fourth episode of the show's fifth season.
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Adam Lambert guest stars as Eliot Starchild on Glee. "A Katy or a Gaga" is the fourth episode of the show's fifth season.
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Glee Quotes

I'm gonna miss all of you. I love you guys.

Puck

Blaine: We don't lip sync in Glee
Brittany: My voice is too weak to sing live. I've been up every night this week yelling at the shrubs in my yard that have been making fun of me.