(1 of 6) Naughty or Nice: Music EditionWe love it when these guys and girls croon out a tune. Whether they’re rapping, beat-boxing, or singing the blues, we can’t get enough of their soulful, sultry, and sexy voices. But we still wonder one thing about these musicians: Are they naughty or nice? Justin Timberlake This beat-boxing beau brought sexy back with his cool sound and smooth moves.
