MGMT - "Kids"
2007's Oracular Spectacular spawned a number of hits, but the most traditionally infectious—traditional in the sense that you know you're supposed to really like this song—is "Kids." It's electro-pop crack featuring the ever-present I-V-vi-IV string of chords. But unlike many songs, that chord progression is disguised in "Kids" with big synth beats. Strip it down to the piano, though, and it's all the same. Naturally, the song got Grammy love.