‘Glee’ Season 6 Spoilers: Quinn, Santana, Brittany Return to McKinley Wearing Cheerios Uniforms (SEE IT)

Quinn, Brittany and Santana are back... and they're wearing Cheerios uniforms. The friends/frenemies, nicknamed "Unholy Trinity," were spotted in behind-the-scenes "Glee" photos at McKinley High School rocking red pleated cheerleading outfits.

According to E! News, Quinn (Dianna Agron), and her cheering pals Brittany (Heather Morris) and Santana (Naya Rivera), were performing a musical number on the McKinley football field with a marching band.

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