Justin Bieber has kept his naughty boy antics off stage as the pop star sent his Sydney ‘Beliebers’ into a frenzy performing the first of two shows in the harbour city.

Bieber has raised eyebrows over his antics Down Under this week – from graffitiing a wall near his Brisbane hotel to enjoying a night out at a Sydney strip club.

None of that seemed to faze his mostly teenage fans attending the Sydney show on Friday night. They eagerly waited as Bieber opened his show at Sydney’s Allphones Arena a half hour late.

Their screams became more and more deafening when a clock began counting down to the star’s arrival on stage.

Bieber opened the show in spectacular fashion, jumping out of the stage with sprays of sparks and smoke to perform his upbeat track All Around The World.

The teenage heartthrob sang One Less Lonely Girl to a lucky Belieber named Olivia, who he invited on to the stage and serenaded with a bunch of roses in hand.

And some Beliebers were reduced to tears as pop star went shirtless while sitting by his white piano.