Justin Bieber: From childish to Mature Artist

Justin Bieber is a Canadian Pop Singer, Song Writer, Musician, Actor. He born in march 1 1994 & released three studio album till now.

1# My World 2.0 (2010)

2# Under The Mistletoe (2011)

3# Believe (2012)

He got fame in so early ages through all around the world.Basically his voice tone is little childish,so his most of the fan are kids.
But now he growing up and his voice tone developing and seems so mature.
His third studio album 'Believe' is the example for this. It is a Dance-Pop and R&B genre based album. So when audience hear the song 'Boyfriend' or 'Beauty & A Beat' , they will find a mature R&B vocalist Justin Bieber !