Major Hit: "Laffy Taffy" (2005)

Other Hit: "Betcha Can't Do It Like Me" (2006)

Silly, simple snap-rap songs like "Laffy Taffy" would seem to be the stuff one-hit-wonders are made of. But after releasing their No. 1 pop single, Atlanta's D4L proved that they had more in store when they dropped "Betcha Can't Do It Like Me." We haven't heard much from them since, but the numbers don't lie: one plus one still equals two.