I wrote about this song in detail two years ago, so I won't repeat myself, except to say this: there are bangers, and then there are bangers.
It's a better example of Side Piece Music than "Dirty Work" or even "The Hardest Thing" by 98 Degrees, just because it's so brazen. And the now-iconic music video gives us all permission to dance like idiots every time the song comes on, even if using this concept on "Call Your Girlfriend" and not "Dancing on My Own" was an outrageous rebuke to nominative determinism.
