JUSTIN BIEBER WAS PELTED IN THE HEAD WITH A WATER BOTTLE WHILE ONSTAGE . . . BUT KEPT HIS COOL

For some of us . . . who are NOT teenage girls . . . it's easy to dismiss the JUSTIN BIEBER phenomenon as yet another soft, teen pop sensation.


(--Who inexplicably gained all kinds of cred with legitimate musicians and rappers within MONTHS of breaking out of YouTube. I still don't get it.)


--But you have to give him some real credit for this: A video has just surfaced from Justin's performance at a Sacramento concert last December . . . in which he gets NAILED IN THE HEAD by a water bottle thrown by someone in the crowd.


--And IF it was a water bottle . . . it's a little unclear from the video . . . it must have been at least partially full, because it looks HEAVY.


--Just before he was hit, Justin was just telling the crowd how much he LOVED them . . . and after the impact, he didn't cry, or freak out, or even get pissed.


--He merely said, quote, "Ow! That didn't feel good." Then, he fixed his hair, naturally, and added, quote, "I don't know why she just threw that at me." (--You can watch the video at the link below. And it DOES look like it hurt.)


http://www.youtube.com/watch?v=b0GjKiy3nSI