(Cover) - EN Star Style - Alyson Michalka cannot wait to test out some of the bathing suits she has been modelling for Op when she goes on vacation.

The gorgeous actress-and-singer is just one of the many stars appearing in the beachwear brands new advertising campaign, along with Glee hunks Mark Salling and Chord Overstreet and reality star Rob Kardashian.

The glamorous images were shot by acclaimed photographer Larry Bartholomew in an old movie set in California, and Alyson was reluctant to remove the attire she was modelling because she loved it so much.

I love the bathing suits, she enthused. Theyre so cute and fit great. I am totally going to wear them to the beach and on vacation.

Op items are available for sale in Americas Walmart stores, as well as via websites walmart.com and op.com.

According to Dari Marder, chief marketing officer of the Iconix Brand Group, the fact that all the stars of the campaign got along so well made for an excellent shoot.

There was fantastic chemistry at the Destination Op photo shoot between our talent Aly, Kat, Brenda, Rob, Chord and Mark many of whom are longtime friends, he enthused in a release. (C) Cover Media