Former O.C. star Adam Brody and Gossip Girl actress Leighton Meester have gone public with their romance.

33 year-old Brody and Meester, 26, were spotted holding hands and walking with their arms around each other this week in California.

The couple are believed to have met on the set of The Oranges in 2011. Brody had a well documented relationship with his The O.C. co-star Rachel Bilson until the pair split in 2006.

Meester has also had an on-set relationship, dating Gossip Girl co-star Sebastian Stan for a year.

Adam Brody is soon to be seen in Lovelace alongside Amanda Seyfried. Following the conclusion of Gossip Girl last year, Meester moved to Los Angeles and has focused on films, with two movies due out this year.