Rachel Bilson reunites with her 'The OC' co-star on the 'Nashville' set

Summer and Luke!

By Emma Dibdin

The news that Rachel Bilson is joining the cast of Nashville was exciting all by itself, but The OC reunion that just happened has taken it to a whole new level. Last night, Bilson shared an Instagram pic of herself next to Chris Carmack, aka Luke, aka The OC's water polo-playing douchebag with a heart of gold.

Even better than the photo itself is Bilson's caption: "Welcome to Nashville B**......this is how it's done in Tennessee."

This, of course, is a reference to Luke's insta-iconic line from the OC pilot.

No word yet on whether Bilson's character Alyssa will share any Nashville scenes with Carmack's Will, but after the news of her casting broke, Carmack tweeted "Can't wait to work with Rachel again... it's been a while!"

Too long.

via Cosmopolitan US.