2009's Biggest Splits
Credit: Frank Micelotta/AMA/Getty Images
Rep: Nicole Kidman Didn't Wear Anne Hathaway'
Minka Kelly Back to Brunette One Month After
Danneel Harris Steps Out With Jensen Ackles:
Lily Aldridge's Tip for a Sexy Beach Body: "A 
Mariska Hargitay Returning for Law & Order: S 
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Avril Lavigne and Deryck Whibley
After three years of marriage, the Canadian couple called it quits in September. "Deryck and I have been together for six-and-a-half years. [We] are separating and moving forward on a positive note," Lavigne, 25, blogged about her split from the Sum 41 rocker, 29.