What Happened To Justin Bieber's Abs?!

Justin Bieber is awfully busy these days as he’s currently in Europe for his Purpose World Tour. So perhaps he doesn’t have time to work out like he used to? Fans are wondering what happened to the Bieb's rock hard abs. Justin proudly showed off his body in concert, on the runway and over and over again for his underwear contract with Calvin Klein. Lately, the pop star has been rocking a less toned body. Fans are wondering what happened.