- "And we danced all night to the best song ever..." How does that work, exactly? They put the same song on repeat and heard it 50+ times? Wouldn't that get indescribably tedious after a while?
- I doubt they were being literal. Keep in mind that references to dancing in music is almost always a euphemism for sex, so maybe "the best song ever" is a metaphor for something else as well (probably whomever is "dancing" with him).
- I believe the idea is that whatever song or possibly songs the couple was listening to is irrelevant to the memories and emotions of dancing together with that particular person. They don't remember what the song actually was, but the person they were dancing with was what was memorable.
Headscratchers / One Direction