By Rebecca Silverstein
Celebrities are rarely relegated to the sidelines. Unless they were supposed to be there -- as cheerleaders! See which celebs led cheers before audiences cheered for them.
Cheered for: Morningside Academy, Port St. Lucie, Florida
In 2009 Megan got to relive her rah-rah days when she played a boy-eating cheerleader in "Jennifer's Body," which we're guessing wasn't much of a stretch from her high school days.
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