Justin Bieber is sixteen-years-old and everything he does is being captured on tape. Everything! Even the embarrassing stuff, like this video of him walking smackdab into a glass door.

It all happened as Justin was getting ready to exit the Radisson Hotel and pushed on the automatic revolving door. That caused the door to stop, but nothing stopped his head! Poor kid!

At least he has a sense of humor about the whole thing. Check out the video:

And the remix, which really brings the LULz:

He sounds like crap when he’s totally Auto-tuned. But he had a laugh and luckily, there was no harm done. Do you think his security people wanted to crack up? Why didn’t his helmet hair protect him from the mean revolving door gods?

Take it easy, Bieber! You’re going to need your head to kiss all those girls! He has said that he’s a very good kisser, girls. Time to pucker up and kiss his boo boo. (I see you Chris Hansen).

That really did look like it hurt!