Austin Mahone Goes Shirtless in Miami on His 18th Birthday!

Austin Mahone shows off his hot shirtless body while riding around town on a pimped out red Segway on Friday afternoon (April 4) in Miami, Fla.

The singer was celebrating his 18th birthday that day and he certainly looks to be having a blast on his first day as an adult!

PHOTOS: Check out the latest pics of Austin Mahone

Austin gave a gift to his fans earlier in the day by announcing the release date for his upcoming debut album, in addition to his plans for a headlining tour this summer.

Not only is Austin in Miami to celebrate his birthday, he also has been spotted spending time with Justin Bieber to record some new music together!