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There's no denying the power of a well-placed tune in a blockbuster movie: Eminem's searing 8 Mile banger "Lose Yourself" outshined the film; Randy Newman's Monsters, Inc. theme gave the animated flick a silly, show tune feel and won an Oscar in 2002; and Bruce Springsteen's tear-jerking ballad "The Wrestler" lent even more poignancy to Mickey Rourke's role in Darren Aronofsky's film of the same name. And there's many, many more where those came from.

But what happens when a song is so bad that it turns a movie soundtrack into a movie sucktrack? Take a look at our selections for the worst songs to ever hit the Cineplex below -- audio/video proof included!

-- Larry Fitzmaurice