Adam Brody and Leighton Meester engaged

OHMYGOSSIP — Adam Brody and Leighton Meester are getting married! The actor recently proposed to the Gossip Girl star — and she said yes, according to Star magazine.

“Leighton and Adam are crazy about each other and have talked about getting married eventually,” an insider told the magazine.

“But she had no idea when he would propose so soon! It was the surprise of her life and she’s ecstatic!”

Adam and Leighton  got “close and friendly” while shooting 2011′s The Oranges together and have been dating for at least 10 months.

Adam, 33, was linked to director Lorene Scafaria in 2010 and famously dated his O.C. costar, Rachel Bilson, for three years.

Meester broke up with actor Aaron Himelstein late last year.

“Right now their plan is to get married next summer,” the insider said.

“They are still deciding if they want a destination wedding or if they’ll marry in southern California somewhere.”