Austin Mahone: Shirtless Commercial Shoot!

Austin Mahone shows off his fit bod while walking around shirtless on set of his new FlavorSplash commercial on Monday afternoon (January 13) in West Hollywood, Calif.

The 17-year-old singer later stopped by the lunch trunk to grab a bite to eat.

PHOTOS: Check out the latest pics of Austin Mahone

“Shooting my @FlavorSplash commercial today!!!” he tweeted. “.@FlavorSplash shoot day 1 is a wrap!!”

The week before, Austin was spotted touching down at Narita International Airport in Tokyo, Japan.

30+ pics inside of Austin Mahone walking around shirtless on set…