Justin Bieber's revealing what music gets him grooving ... his own stuff -- 'cause he was vibing to a couple of his ...

On the eve of the release of his new album, "Purpose," Justin Bieber is having the best year of his career. "What Do You Mean?" is his first song to ever hit No. 1 on the Billboard charts ...

Justin Bieber ... songs that people can relate to and connect to so they feel less alone." Never miss a story — sign up for PEOPLE's free daily newsletter to stay up-to-date on the best of ...