Mambo No. 5 - Lou Bega
(I can't argue with success, but I hate what he did to the Perez Prado song, it's not even a Mambo anymore)
As an antidote:
We used to play the Perez version when we were hired by the Arthur Murray franchise to play for member dances. We tried to avoid the Lou Bega version, but we're good hos and we played it when requested.