Celebrity birthdays in March

Slideshow posted in Photos | Thursday, March 08, 2012

1 of 93: Justin Bieber, one of the most popular young pop stars in the world, turns 18 on March 1, 2012.

(Pictured: Justin Bieber appears on stage at Michael Jackson's hand and footprint ceremony at the Grauman's Chinese Theatre on Jan. 26, 2012. Check out exclusive videos from the event.) ( Photo / OTRC)

Get more: Celeb Lives