How are Chris Brown, Jack White, Black Sabbath, Carly Rae Jepsen and Bieber faring?
Winners: Usher and Justin Bieber
It's a sweet story when both mentor and mentee score No. 1 albums in the same year. Bieber is gaining legitimacy for more adult audiences with "Believe" -- scoring guest spots from hot rapper and producers -- while Usher has danced his way into more crossover on radio, with some hot spots with Rick Ross for hip-hop airplay and a major dance/pop hit with "Climax."