Justin Bieber throws tantrum on TODAY show as director misses his dance moves

Not that we need a reminder that Justin Bieber is essentially a fully grown toddler but, well, this video is further evidence.

After performing his new single 'What do you mean?" on US show TODAY, the 21-year-old flips out and claims the camera's weren't moving enough to pick up his dance moves.

Sadly for Biebs, the cameras might not have picked-up his choreographed moves but they did catch his outburst at the show's director.  

Even when the camera cuts, we can still hear newly-blond Justin saying: "What do I do this for?"

We're guessing the fans? The millions of dollars? The fame? The fast cars? And the endless rotation of hot young women wanting to hang out with you?

Oh, right, that was a rhetorical question.

Let's all remember that time when Justin walked into a revolving door, below.