As in the 90's there were plenty of one-hit wonders, so I thought to at least get some of the well known ones I'd add a part two to the 90's One-Hit Wonders.
Los Del Rio (Antonio Romeo Monge and Rafael Ruiz) are a Spanish flamenco-pop duo. "Macarena" was the first hit for Los Del Rio since 1962 and their only hit in the US.
The 90's seem to stick out to me more than other decades for it's one - hit wonders, however; either decade you may have grown up with the music no doubt leaves with you a strong sense of nostalgia.