Happy Birthday Bieber! Justin's 18 Most Essential Moments

justine bieber is 18 years old now..
and i will get my 19 in this year on may..
i dont really like justine bieber actually, however he is really famous and his birthday also become  trending topic in Twitter, that is why i will also want to know about his birthday too...

here are some quotes from Billboard.com

Thursday, March 1 marks a special day for a special young man -- Justin Bieber, the teen superstar currently running the pop universe, has turned 18 years old. While Bieber has only been in the public eye for roughly three years, the singer has mounted a staggering list of accomplishments in that period, from three No. 1 albums to a Grammys performance to his own singing dolls, and everything in between.

To celebrate Justin Bieber becoming an adult and blowing out 18 candles, check out Billboard.com's rundown of the singer's 18 most memorable moments so far, and tell us what you think about our choices in the comments section.