How did Gossip Girl star Jessica Szohr (Vanessa Abrams) find herself in a cuddle puddle with Glee cast members Cory Monteith and Dianna Agron (Finn Hudson and Quinn Fabray)?

The trio is starring in an upcoming ad campaign for juniors clothing brand Op, along with R&B singer Cassie, 90210’s Trevor Donovan, and Alex Meraz of New Moon and Eclipse.

The “Rock Your Shine” campaign, shot by photographer Larry Bartholomew and set at a summer block party, and features the young TV stars lounging in a hammock, barbecuing, and getting ready to head out surfing in cute beach-ready pieces like these ...

“The clothes are so great; especially the amazing bikinis and shorts,” says Jessica Szohr, who just turned 25, of her favorite pieces from the line, available exclusively at Walmart.

And if it looks like they’re having fun, it’s because they are:

“The cast had a blast, since some of them were already great friends, and even co-stars. The rest made lifelong friends after a long, fun day on set,” says the brand's manager.

Good to hear ... and to wear!

Steve Marsi is the Managing Editor of TV Fanatic. Follow him on Google+ or email him here.