"Windy" is by the Association and they had about 10 or 11 hits in the 60s.
The biggest one hit wonder of all is "Macarena" by Los Del Rio from 1996. 14 weeks at #1 all summer!
They had a hit with a different version of that song but it's basically the same.
Debby Boone sat at #1 for 10 weeks w/ "You Light Up My Life" in 1977.
Nothing else from her!
By the way,Looking Glass had a top 30 hit after Brandy with the song "Jimmy Loves Mary Ann". I know,forgettable. :D