Flaunt it if you've got it!
Last night Justin Bieber performed at the Billboard Hot 100 Music Festival in New York and he didn't disappoint!
It was during his newest hit song Where Are U Now that the 21-year-old singer decided to show off his fit physique by ripping his shirt off!
He kept his baseball hat on while he flexed and flaunted his muscles around the stage singing to the packed audience!
It sure looks like he's kept up his workout routine since appearing in that AH-Mazing photo shoot for Men's Health! He's as pumped as we've ever seen him!
Swoon on, Beliebers!
[Image via Getty Images.]