Although they keep their romance super private, Leighton Meester and Adam Brody are still one of Hollywood’s most beloved couples. It’s probably because both stars hail from two different TV shows that are absolutely beloved by fans. Leighton, 35, played the iconic Blair Waldorf on Gossip Girl, while Adam, 42, starred as the lovable Seth Cohen in The O.C. While the couple didn’t share the screen on their popular shows, they have worked together in Hollywood a few times. Leighton and Adam have been together for nearly a decade and have expanded their family with the arrival of two children. As their love continues, we’re taking a look back at the timeline of Leighton and Adam’s romance.