Alvin and the Chipmunks is a popular children’s film from 2007 that follows three musical chipmunks named Alvin, Simon, and Theodore who find a new home in Dave’s house, a singer songwriter that helps them gain popularity and show off their talents to the world.

To dress like Simon, wear a blue hoodie, a headband with ears, a chipmunk fuzzy tail, and black round frame glasses. For pants and shoes, anything goes but khaki shorts or pants might fit best.

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