Justin Bieber just kicked off his global 'Believe' tour but it's already making headlines, and not because a mob of teenage girls smothered him in a pile of prepubescent panties.

During his Sept. 29 gig in Glendale, Ariz., the pop star gave the audience a little too much of himself by tossing his cookies live on stage.

As you can see from the video above, the Biebs was midway through the song 'Out of Town Girl' when he suddenly turned around, bent over, and evacuated his stomach (probably giving whomever mopped it up a new income stream on eBay in the process).

"It's hard for me, you know, not feeling great and throwing up in front of a bunch of people," Bieber reportedly told his fans upon his return. "Will you love me even though I'm throwing up on stage? I wanted to give you my best show ever, so do you mind if I finish it?"

Mocking Justin is one of our favorite pastimes around here -- but props are in order not only for the puke-and-rally, but for the sense of humor he showed afterwards by tweeting out a line from 'Anchorman':

Well played, kid. Well played.