Beyonce's "Single Ladies" - Chromatik's Tune of the Day

According to Kanye West, this is the song that spawned the Best Music Video of All Time. He's right, of course, but the success of the music video takes away from "Single Ladies" accomplishments as a pop song. Using a simple melody and hook and repeating them ad nauseum, the song straddles between being aggressively annoying and stupidly fun. You've probably had this song stuck in your head for the past five years and it shows no signs of going away.