On Tuesday (June 19) Justin Bieber made his official foray into manhood with his almost shockingly mature-sounding new album Believe. It's hard to grasp just how much the once "Baby"-faced crooner has grown up since his debut LP, My World 2.0. And while JB's third studio album is staged to have the biggest debut week of 2012 yet, the swaggy singer can't take all the credit. From the songwriting skills of The-Dream and Mike Posner to collaborations with everyone from Ludacris to Drake — not to mention a boost from his "big bro", Usher — Justin's had help from some of the biggest and best in the biz. Take a look back through the extra helping hands that have shaped the sound of the pop star juggernaut in our gallery above.
What do you think of Believe? Tell us below, on Facebook or on Twitter. And don't forget you can get even more behind-the-scenes info on our special Justin Bieber Believe page.
