Allow Exes Rachel Bilson and Adam Brody's The O.C. Reunion to Make You Nostalgic AF

Seth and Summer Forever! Adam Brody and Rachel Bilson Reunite for 'OC' Chat

Rachel Bilson heads out on a date with a mystery man at Van Gogh art exhibit in Los Angeles

Leighton Meester & Adam Brody Volunteer For Feeding America In Honor of Hunger Action Month