Rachel Bilson 'O.C.' Reunion: Melinda Clarke, Kelly Rowan Unite at Show's Musical

California, here we come!!! The cast of The O.C. gave us a reunion that we didn't even realize we were missing. Some of the stars from the popular 2000's series featuring Rachel Bilson, Mischa Barton, Ben McKenzie, and Adam Brody, got together to attend the a new musical based on the series in Los Angeles over the weekend. While not all of the cast could make it to The Unauthorized O.C. Musical one-night only performance, three of our favorite gals got the chance to reunite. Bilson, along with Melinda Clarke, and Kelly Rowan, who played Summer Roberts, Julie Cooper, and Kirsten Cohen, respectively, hung out and gave us a flashback to our high school days.

According to Us Weekly, the series ran from 2003 to 2007 and the amazing soundtrack that perfectly encapsulated our teenage angst, was the inspiration for the stage production.

The site is reporting that the show included some of our favorite and most iconic songs from the series, including Jeff Buckley's "Hallelujah," The Killers' "Smile Like You Mean It," Super Furry Animals "Hello Sunshine" and Jem's cover of "Maybe I'm Amazed." And what would a musical based on the show be without a cover of the theme song. The show started with an ensemble performance of Phantom Planet's "California."

Not only was Bilson reunited with her onscreen mother figures, but also the crew behind the scenes, as co-executive producers Josh Schwartz, Stephanie Savage, and McG were also in the audience for the spectacular.

According to MTV, the onstage cast, which included OC star Autumn Reeser playing Julie Cooper, also featured stars like Drew Seeley, Molly McCook, Brendan Robinson, and Awkward star Greer Grammer as Summer.

Greer took to her Instagram account to post a picture of herself and some of the rest of the crew at rehearsals for the show.

A photo posted by Greer Grammer (@greer_grammer) on Aug 18, 2015 at 8:53pm PDT

"Ryan.Marissa,Summer.Seth ?????????? #theocmusical #theoc @courfour #rehearsals," the star wrote in the caption.