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Rachel Bloom Performs Katy Perry's 'Teenage Dream'

Season 26/13/16

It's high school all over again! Watch as the "Crazy Ex-Girlfriend" star, Rachel Bloom, brings her musical comedy to the stage with Katy Perry's "Teenage Dream"! Rachel takes on Michael Shannon this week in a face off you won't forget, so be sure to tune in this Thursday at 10p/9c!

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