Justin Bieber decided to try and prove he's all cool and stuff recently, as he partied on stage with Rae Sremmurd and drank some alcohol.

UH OH.

The singer was in New Zealand with the rap duo on Thursday night (October 1), and drank Hennessey cognac while performing his new single.

He then continued to enjoy himself on stage, feeling the need to pour a whole load of drink onto the floor and then smoke something. Like, why would you do that Justin?

Also, what's with the dad dancing!? We're just full of questions today