A group of young stars recently lent their hotness to Op’s new Destination Op campaign. The ads feature Mark Salling and Chord Overstreet from Glee, Brenda Song of The Social Network (right), recording artist and Hellcats actress Aly Michalka (left), Kat Graham of The Vampire Diaries (center), and Rob Kardashian, all dressed in swimsuits and surfwear. “If you’re a California girl you have to have Op in your wardrobe,” Graham said of the brand. “I love it.” The collection shown will hit Walmart stores and Walmart.com this spring. Check out this exclusive photo from behind-the-scenes, and click through to see more!