In a parallel universe of The O.C., Summer Roberts didn't end up with Seth Cohen and Luke Ward didn't move to Portland — they became BFFs and traded in Newport for Nashville. At least, that's what might have happened had they been anything like their real-life counterparts, Rachel Bilson and Chris Carmack. The former co-stars have found themselves back on TV together again on Nashville, and Bilson celebrated the news with the best Instagram caption. "Welcome to Nashville B****......this is how it's done in Tennessee' @realcarmack #propergreeting #nashvillecmt," she wrote, referencing Luke's iconic "Welcome to The O.C., b*tch," line in the first episode. The only way this could be any more perfect is if Adam Brody and Benjamin McKenzie joined them (unfortunately, they're a little busy changing diapers, we imagine).
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