Evolution

According to no less an authority than the RIAA, Boyz II Men are the most commercially successful R&B group of all time. They've sold ludicrous numbers of records and been involved in three of the longest-running number one pop singles in history, and they've done it as a unit of equals. In fact, their four-part harmonies blend so smoothly that most of the general public would be hard-pressed to name any of the group's individual members. And that's no reflection on their skill as singers; Boyz...