Rachel Bilson Reunites with The O.C. Costar Melinda Clarke

Rachel Bilson/instagram Rachel Bilson (L) and Melinda Clarke

Rachel Bilson is throwing it back to The O.C.

On Friday, the 39-year-old actress shared a selfie with Melinda Clarke, her former costar on the popular teen drama during the early aughts.

In the picture, Bilson wears a white top while Clarke, 51, strikes a pose behind her in a matching tank top. The two can also be seen wearing similar gold chain necklaces.

"#FBF???? 🤔 wait for it....." Bilson wrote on her Instagram, captioning the post with the hashtags "eternal summer" and "COVID safe."

Clarke also shared Bilson's post on her own Instagram Story.

The two actresses starred in The O.C. for four seasons from 2003 to 2007. Bilson played Summer Roberts, while Clarke was part of the cast as Julie Cooper, the mother of Mischa Barton's character, Marissa Cooper.

WB The O.C.

RELATED: Shailene Woodley Calls Her Short-Lived Role on The O.C. Her 'Proudest Accomplishment'

It's unclear if Bilson and Clarke are working on a project together, though the reunion nonetheless created a frenzy in the comments section.

"🤯🤯🤯🤯🤯🤯," actress Kristine Froseth wrote.

"Omg the reunion we all didn't know we needed," another user commented, while a third remarked, "OMG I'M CRYING ❤️."

This isn't the first time Bilson has reunited with an O.C. cast mate since the show went off the air. In 2019, the actress bumped into former costar and ex Adam Brody at the airport and snapped a picture of their serendipitous encounter.

"Ran into my ol buddy from jfk to lax #californiaherewecome," Bilson captioned the shot, referencing lyrics to the series' theme song.

Created by Josh Schwartz, The O.C. also starred Ben McKenzie, Kelly Rowan and Peter Gallagher. It followed the the lives of affluent families living in California's Orange County after a troubled young man is adopted into one of their homes.

RELATED VIDEO: What Does Ben McKenzie Miss Most About The O.C.?

What Does Ben McKenzie Miss Most About The O.C.?

What Does Ben McKenzie Miss Most About The O.C.?

Last year, Gallagher — who played beloved dad Sandy Cohen on the series — opened up about his time on the show to PEOPLE.

"We really had something with that show," he said. "And the audience felt the same way."

Despite the cast's busy schedules these days, Gallagher said he still tries to keep up with his former costars.

"We try to get together, but it doesn't quite work out, because someone has to go somewhere," he admitted. "But I love those kids. And I root for them, always."