Gavin Rossdale Displays His Washboard Abs at the Beach!

Gavin Rossdale flaunts his rock hard abs while going shirtless at the beach on Sunday (August 31) in Malibu, Calif.

The 48-year-old singer was joined for some fun in the sun by his sons Kingston and Zuma (not pictured).

Gavin recently chatted with Rolling Stone about working with his wife Gwen Stefani as a mentor on the new season of The Voice.

“It was fun to both be together at work. It was important to me to be really open to it. Obviously, my journey through music is completely antithetical to what that show is about. What’s the point of trying to wave that flag? I like how it brings people together,” Gavin said. “When you meet those people coming in, they have great voices and they’ve all worked a long time. It takes a long time to sing like that. They sound really good. You can’t help but get emotionally involved with those people. You see how much it means to them.”