He's responsible for the existence of Maroon 5
Without Adam Levine, there'd be no Maroon 5. (OK, maybe some of you think that would be a good thing.) But the pop-rock act is responsible for some of the catchiest tunes of the past decade -- from "This Love" and "Sunday Morning" to "Misery" and "Payphone." And if you can honestly say that you've never wiggled to "Moves Like Jagger," we seriously question whether or not you're human.