<p>Singer Justin Bieber, who has apologised several times in the past for his bad behaviour, was caught on camera smoking weed and drinking liquor onstage, here.<br /><br /></p>.<p>The "Baby" crooner joined hip-hop duo Rae Sremmurd at the latter's show here on Thursday night. During their performance, he held a joint and puffed away. <br /><br />In a video obtained by tmz.com, he's also seen taking a gulp of Hennessy before pouring the beverage out on stage, reports aceshowbiz.com.<br />According 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."<br /><br />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.</p>
<p>Singer Justin Bieber, who has apologised several times in the past for his bad behaviour, was caught on camera smoking weed and drinking liquor onstage, here.<br /><br /></p>.<p>The "Baby" crooner joined hip-hop duo Rae Sremmurd at the latter's show here on Thursday night. During their performance, he held a joint and puffed away. <br /><br />In a video obtained by tmz.com, he's also seen taking a gulp of Hennessy before pouring the beverage out on stage, reports aceshowbiz.com.<br />According 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."<br /><br />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.</p>