Justin Bieber's Doppelgänger Duped Las Vegas Nightclub: How It Happened.

According to The Sun: Watch how the guy resembling Justin Bieber, Dylan Decklo, 29, tricked a Las Vegas nightclub by posing as the celebrity and racking up a $10,000 bar tab.

The staff and guests at the Wynn Las Vegas hotel believed that the imposter Decklo was the real Canadian pop star.

LA-based DJ Gryffin, known for his work at XS Nightclub, learned that Bieber, 31, was in town, according to TMZ.

He heard that Bieber intended to perform at his show and agreed to invite him on stage.

Videos surfacing on social media show the imposter performing 'Sorry' on stage in front of enthusiastic fans, always wearing dark sunglasses.

DJs happily supported him from behind the decks, while fans wildly welcomed him.

Another video shows fans eager to take selfies with Decklo, while a fake security team disperses cash in the shops and bar.

American DJ Gryffin recorded the whole incident on Instagram Stories, adding photos and captioning them 'Bustin Jeiber'.

Thus, Dylan Decklo successfully duped the nightclub by posing as Justin Bieber, conning a famous DJ and the crowd on social media.