Taking his shirt off, partying with a popular hip-hop group and swigging from what appears to be a bottle of Hennesy - Justin Bieber had quite the night last night.

The chart-topping pop star is in New Zealand on a whirlwind promotional trip, but Bieber hasn't let jet lag cut short his activities.

Photos and videos from hip-hop group Rae Sremmurd's Auckland show last night show Bieber showed up on stage, dancing, singing and drinking with the duo.

Photos of Justin Bieber at a night club in New Zealand tonight.

A photo posted by Justin Bieber Crew (@jbcrewdotcom) on

At one point, he pours what appears to be a $60-bottle of Hennessy out on stage; at another, he appears on the balcony above The Studio's main stage with his shirt off while surrounded by women.

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Bieber leaves New Zealand today after cramming in a bungy jump off Auckland's Harbour Bridge, and appearing at a "Bieber-que" hosted by radio station ZM.

josiecampbell: Work was a little cray tonight. @raesremmurd x @justinbieber at the Studio with @paintitgoldnz

A photo posted by Justin Bieber Crew (@jbcrewdotcom) on

He appeared at Rae Sremmurd's show after performing an intimate showcase for around 150 fans, and recording interviews with TV3's Paul Henry and Story's Heather du Plessis-Allan.

Justin Bieber on stage with Rae Sremmurd at The Studio in Auckland. Photo / Paint It Gold
Justin Bieber on stage with Rae Sremmurd at The Studio in Auckland. Photo / Paint It Gold

The promoter of the Rae Sremmurd show, Paint It Gold, released a statement saying:

"Rae Sremmurd have been in New Zealand for several days ahead of their sold-out first New Zealand show at the Studio last night. Their friend Justin Bieber was also in town on a promotional tour, and decided to drop into the show to catch up with his friends. Justin [joined] them on stage for several Rae Sremmurd numbers and a rendition of his hew song What Do You Mean."

Swag ??ft @justinbieber x @jxmmis x @fungswae #SremmLifeTour #OZ #NZ

A video posted by Rae Sremmurd (@raesremmurd) on

- nzherald.co.nz