Take a look back at Shawn Mendes' hottest moments as he celebrates his birthday

It's Shawn Mendes' birthday today (August 8). The Nothing Holding Me Back singer has built up a legion of fans over the past few years, and he's been dubbed as the next Justin Bieber. With numerous hits to his name already, and his latest holding strong in the U.S. Top Ten, it looks like the now 19-year-old star is here to stay. Take a look at Shawn below: