from the 70's:
Mungo Jerry - In the Summertime
Brewer SHipley - One Toke Over The Line
Billy Swan - I can Help (used to play piano with KK)
Charlene - I've Never Been To Me 1982 (???LOL!!!)
I checked out a few "One Hit Wonder" websites
http://www.onehitwondercentral.com/index.cfm and it's funny that many of the songs have been re-made years later and been big hits but the original performers never had great success again....Like Brooks and Dunn doing "My Maria" (1973) but where is B.W.Stephenson???-Sammi Smith did "Help Me Make It Thru The Night" by Kris K. but where is she? (not that anyone cares!)
some of them were great songs...others make me wonder how they ever became hits at all....
and that's the wonder of it!!