The 55-year-old Bush frontman wasted no time to do a quick change after his lesson over the weekend left him completely drenched in sweat.

The No Doubt singer's ex couldn't wait to rip off his wet gray t-shirt and flex for the cameras nearby.

Gavin beat up the ball on Saturday at a Los Angeles court but made sure to get in a quick stretch before his lesson began.

The rocker sported an interesting wardrobe combination, wearing camouflage print shorts, a plain tee, bright pink socks, and a scarf to hold his long locks out of his face.

Doing lunges before getting into the tennis ball, Gavin's cool fashion choice didn't stand a chance in the Southern California heat.

Within minutes, Gwen's ex-husband was drenched in sweat -- which was evident, thanks to his gray-colored shirt.

Gavin didn't seem to mind because after rocking his sweat all over his chest for nearly an hour, the musician finally gave fans what they wanted and opted to go shirtless.

Showing his forme