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Amy Poehler, Will Arnett

NEW YORK, NY - APRIL 28: Actors Amy Poehler (L) and Will Arnett attend The Comedy Awards 2012 at Hammerstein Ballroom on April 28, 2012 in New York City. (Photo by Gilbert Carrasquillo/FilmMagic)

Celebrity Breakups of 2012

Heidi Klum and Seal, Tom Cruise and Katie Holmes, and many more called it quits this year.