Blake Shelton, Gwen Stefani, Trace Adkins & More Walk the Red Carpet at L.A. Premiere of “Bennett’s War” [Photo Gallery]

Trace Adkins will co-star in the upcoming film, Bennett’s War, which hits theaters nationwide on Aug. 30.

During the flick’s L.A. premiere on Aug. 13, Trace walked the red carpet with his co-stars—Michael Roark, Ali Afshar, Allison Paige and more—as well as his longtime friend Blake Shelton, who was joined by girlfriend Gwen Stefani.

For his role on the big screen in Bennett’s War, Trace plays Cal Bennett, father of the titular character. According to the movie’s synopsis: Marshall Bennett (Michael Roark) is a young soldier with the Army Motorcycle Unit who survives an IED explosion in combat overseas, and is medically discharged and sent back to the U.S. When he gets home to his family farm, he discovers that his dad, Cal Bennett (Trace Adkins), is behind in the mortgage and may lose the farm. Against all odds, Marshall Bennett pledges to help his family by the only means he knows how, as a motocross racer.

Blake and Trace, who joined forces on the 2009 No. 1 hit, “Hillbilly Bone,” will release a new single, “Hell Right,” on Aug. 16.

“I decided it would be great to have Trace Adkins on this [song] just because he’s got that low, deep, big voice and he’s so great at the ad-lib stuff,” says Blake. “He just brings a certain quality to any recording that nobody else can touch. The guy’s got so much personality in his voice and the way he sings, and I still think that he’s one of the most underrated country artists out there, so I called him and asked if he would be on the record with me and he said something that was close to ‘hell right,’ but it was a different cuss word.”

Check out our photo gallery of the L.A. premiere of Bennett’s War, courtesy of photographer Janet Gough,

photos by Janet Gough/