Gwen Stefani
I ain't no Harlem black girl!

AC/DC
Dirty deeds and the Thunder King

Dirty deeds, and I've done thirteen

I used to think it was the former, for a very long time. Then I heard an arrangement that had me utterly convinced it was the latter. Just now, I looked up the song so I could reference it here - and learned that it's actually, "Dirty deeds and they're done dirt cheap."
Never before have I been so wrong about something, for so long.