Justin Bieber gives up alcohol?

Pop sensation Justin Bieber has reportedly quit alcohol and junk food.

The 20-year-old 'Baby' hitmaker has decided to ditch booze and stay away from junk food in the hope of getting his music career back on track, reported Contactmusic.

"Justin has been boasting to his friends about his new healthy lifestyle. He no longer drinks and has stopped eating junk food, too. He's had a difficult few months and is hoping that this will give him a fresh start," a source said.