Justin Bieber and Usher cover the latest issue of Billboard. We'll give you a moment to go pick up a copy...

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With the the release of Bieber's Believe just over a month away, mentor and protege gush over each other within the pages of the publication.

"He’s always been a dope MC," Usher says of the singer he discovered on YouTune. "'Boyfriend‘ was really the defining moment; it became No. 1 everywhere, which is what dreams are made of. Both of us are being modest about what our journeys have been in terms of songwriting: Justin really has participated in every writing session - that’s amazing.

"It’s easy to just dial something in, but if you make the music authentic, people feel connected to you as an artist from the beginning.”

As for Justin on Usher? What makes him an ideal mentor?

The Biebs says the Ush has been "successful in everything that he’s done. He’s made some mistakes, too, but he’s learned from them, so he can tell me what to do and what not to do.”

Pick up this issue of Billboard for more from the pair!