Justin Bieber mocks Kiwi radio host

A video of Justin Bieber mocking a Kiwi radio host is trending on social media, after he poked fun at her "collab dance".

Bieber hosted a special "Bieber-Q" event at Auckland's ZM office last week, where radio host PJ Harding interviewed him.

There's this new move called the #CollabDance and I can't stop watching @JustinBieber do it: http://t.co/2Js8gaQfTK pic.twitter.com/USbzVWEonE

— MTV (@MTV) October 6, 2015

During a game of ping pong, Bieber started teasing Harding about a little dance move she did while talking to him.

Quickly dubbed the "collab dance", the move saw Bieber imitate Harding's suggestive shoulder wiggle repeatedly.

"You've opened up to me quite quickly," he said, laughing.

The Where Are You Now hit maker even contemplated bringing the move into everyday use.

"Every time I do a collaboration with someone and I'm in the studio, I'm gonna be like, 'Hey, do you wanna do a collab with me?'" he said, swinging his hips and rolling his shoulders.

"Hey 2 Chainz, I got this crazy song for you. It'd be perfect for a collab."

#CollabDance is now trending on Twitter, with international outlets MTV and Buzzfeed picking up on the story.

Bieber was in New Zealand last week as part of a promotional tour.

- nzherald.co.nz