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Bret Michaels

PHOENIX, AZ - MARCH 19: Musician Bret Michaels (L) and Kristi Gibson arrive at Muhammad Ali's Celebrity Fight Night XVII at JW Marriot Desert Ridge Resort & Spa on March 19, 2011 in Phoenix, Arizona. (Photo by Michael Buckner/Getty Images for Celebrity Fight Night) *** Local Caption *** Kristi Gibson;Bret Michaels

2012's Celebrity Breakups

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