Justin Bieber: Beach Time with Dad Jeremy!

Justin Bieber and his dad, Jeremy Bieber, work up a sweat while working out shirtless at the beach in Los Angeles on Wednesday (January 4).

The 17-year-old singer tweeted, “nothin better than a good laugh.”

PHOTOS: Check out the latest pics of Justin Bieber

Justin and Jeremy bounced around at the trampoline fun center Sky High Sports. They also hit up Subway for lunch, cruised around in an Audi, and picked up drive-thru from Jack in the Box.

25+ pictures inside of shirtless Justin Bieber at the beach…