Guess what? The Original Pranksta is gonna embarrass himself totally. My favorite non-metal artist would be Elliot Smith, who did "Miss Misery" from the Good Will Hunting soundtrack. Great song.
Here's the bad part: I love the Spice Girls. Every time I hear "Two Become One" I wanna cry. Pathetic, I know.
And hey, if you like a really low tone kind of music, check out the band Set Fire to Flames. They're rare and hard to find, but they're worth it.