Justin Bieber stages surprise show at Calvin Klein event

Justin Bieber treated fans in Hong Kong to an impromptu performance on Thursday (11Jun15) as he promoted his new Calvin Klein fashion campaign with model pal Kendall Jenner.

The young stars are both faces of the jean and underwear brand and they flew into China together to show off their wares at a special event.

However, Bieber decided to give attendees a live mini-gig, belting out his hits One Time, Boyfriend and Beauty and a Beat, among others, at the request of one excited devotee.

His manager Scooter Braun took to Twitter.com to share the news with followers, writing, "Yeah @justinbieber is killin (sic) it at (the) #calvinkleinlive event in Hong Kong. Out of no where (sic) he took a request and is playing #onetime!"

The Hong Kong event was the latest unplanned Bieber performance after singing a cover of Boyz II Men's I'll Make Love to You during Jazz Night at the W Hollywood Hotel and playing an acoustic concert in a Los Angeles bowling alley last month (May15).