Justin Bieber smacked in the face by water bottle

Justin Bieber was once attacked with a water bottle on stage, a video has shown.

The footage shows the teen pop idol carrying on his show after a fan launched her drink at him.

He was left dazed as the bottle smashed down onto his head during the 16-year-old’s gig in Sacramento, California, reports the Daily Star.

Bieber clutched his head before saying: “Ow. That didn’t feel good. I don’t know why she just threw that at me.”

As she hurled the bottle he was just saying: “I love you guys.”