Singer hits his head on glass

Justin Bieber was left red-faced after walking into a revolving door this week.

The singer was leaving a Radisson Hotel in Germany when he bumped into the glass panelling.

Justin, 16, obviously collided with quite a thump as he staggered away clutching his head.

I just walked into that door,’ he told a cameraman.

My forehead hurts. What happened was, I thought it opened, but obviously it didn’t, and I walked right into the window.’

SEE VIDEO Justin Bieber walks into revolving door…

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