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Katie Holmes, Tom Cruise

LONDON - JANUARY 21: Katie Holmes and Tom Cruise attend the UK premiere of Valkyrie at Odeon Leicester Square on January 21, 2009 in London, England. (Photo by Eamonn McCormack/WireImage)

2012 Year In Review: Celebrity breakups

It was a sad year for Hollywood romances, and some of the most famous couples in Tinseltown split in 2012, from TomKat to Heidi and Seal. We bring you the top 10 break ups. -- Soraya Roberts