who is Justin Bieber

to be honest so far I do not know who the hell is Justin Bieber? in twitter has been several months in always being "Trending Topic" but I ignored it, just at the end of this the name of Justin Bieber began sticking very sharp in the many media even to many young girls began to replace his name with Bieber on various social networking accounts.

I really do not know who Justin Bieber and I want to know who he really is, I hope I get results that will be satisfying my curiosity and not even hate him for the name Justin Bieber has been haunting me for almost a year.