It's a weird feeling when a seemingly hokey, ridiculously popular song keeps going through your head. I usually have relatively little-known songs, or even songs only I know, go through my head. It's even weirder when a song goes through your head and it takes you a while to realize that the words reflect something going on in your life.
Hilarious bit from Wikipedia re: confusion about the lyrics:
'There remains confusion and debate over the line "Are we human, or are we dancer?" [or "denser"] ... the lyrics were inspired by a disparaging comment made by Hunter S. Thompson, where he stated America was raising "a generation of dancers". ... [Killers frontman Brandon Richard] Flowers [said] "It's supposed to be a dance song, [the beat] goes with the chorus...If you can't put that together, you're an idiot".'
Right, like, dense. It all works.