AceShowbiz -

Having apologized several times earlier this year for his bad behaviors in the past, Justin Bieber shows signs that he hasn't really changed. The 21-year-old singer was recently caught on camera smoking weed and drinking liquor onstage in New Zealand.

The "What Do You Mean?" hitmaker joined Rae Sremmurd at the latter's show in Auckland on Thursday night, October 1. During their performance, he held a joint and puffed away. In a video obtained by TMZ, he's also seen taking a gulp of Hennessy before pouring the beverage out on stage.

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

A video posted by Rae Sremmurd (@raesremmurd) on Oct 1, 2015 at 6:50am PDT

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

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A photo posted by Justin Bieber Crew (@jbcrewdotcom) on Oct 1, 2015 at 8:21am PDT

Accoding to the show's promoter, Bieber was in New Zealand on a promotional tour and "decided to drop into the show to catch up with his friends." The Canadian star joined Sremmurd for several Sremmurd numbers and a rendition of his own latest hit, "What Do You Mean?"

Bieber reportedly left New Zealand on Friday morning.