Post Malone

Here's what Posty has to say.

Posty says 'you can't tell' and 'he's so strong.'

Here are the details.

Look out below!

So much fire you'd think Slayer were playing.

Posty's fans went nuts.

Posty with the big W.

Green Day are the only other rock act performing at the AMAs.

Impressive.

Get ready for Halloween with these celebrity-inspired costumes you can find in your own closet.