Sugar and Joe

Sugar looks like Quinn here, Joe like Mike. It's the result of a head injury to Tina on the episode "Props."
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Body Swapping

Don't adjust your eyes, Gleeks. After Tina slams her head on the episode "Props," her world starts to look different.
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Puck as Blaine

Oh, yes. This is a photo of Puck making line Blaine, which is the result of Tina's imagination after she slams her head.
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Mike as Joe

Mike Chang does his best Joe impression. At least in Tina mind, thanks to his unusual scene from "Props."
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Will as Sue

Your eyes are not deceiving you. When Tina bumps her head, she starts to see people a bit differently, as evidenced by this photo.
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Rachel Takes to the Stage

Rachel gets up to perform in this Glee scene. It's courtesy of the episode "Props."
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Blaine as Puck

This is a photo of Blaine. As Puck, of course. It's a long story and it's related to a head injury for Tina.
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Glee Season 3 Episode 20 Quotes

Tina: My name is Tina. Tina Cohen Chang.
Sue: Isn't she the one who used to stutter?

You only have yourselves to blame. And the liberal media.

Sue

Glee Season 3 Episode 20 Music

  Song Artist
Because You Loved Me Glee Cast iTunes
I Won't Give Up Glee Cast iTunes
Flashdance... What A Feeling Glee Cast iTunes