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A YouTube video posted this week shows Justin Bieber being struck in the head by a water bottle thrown at him from the audience during a concert.
The undated video shows Bieber continuing the Sacramento, Calif., concert unfazed and saying: "Ow. That didn't feel good. I don't know why she just threw that at me."
Just before the fan throws the bottle, Bieber tells the crowd, "I love you guys."
Bieber, a teen singing sensation, is 16 and from Stratford, Ont.