(2 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? Fergie Fergie defines glamourous with her billowing hair and sizzing ensembles.