Leighton Meester and Adam Brody Are Engaged!

Adam Brody and Leighton MeesterA match made in teen TV heaven - Leighton Meester and Adam Brody, who both starred in Josh Schwartz-created shows (Gossip Girl and The O.C., respectively) are getting married!

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According to Wonderwall, the couple of about a year celebrated their happy news with friends and family at an engagement party on November 10. A source told Star, "Leighton and Adam are crazy about each other and have talked about getting married eventually. But she had no idea he would propose so soon! It was the surprise of her life and she's ecstatic!"

The happy couple became close friends while filming The Oranges in 2011 but didn't start dating until earlier this year. They're also working together on the upcoming movie Life Partners. Early reports say they're planning a summer wedding and are deciding between a destination wedding and marrying in Southern California.

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By Kristen O'Gorman Klein