Yes, its technically a one-hit wonder since it charted and the artist never charted again. But its also a novelty song, which were intentional one-hit wonders and the artists never made another record.
Actually he recorded an album and put out another single, which did not chart. http://en.wikipedia.org/wiki/Napoleon_XIV#Side_1 Albums 1966 They're Coming to Take Me Away, Ha-Haaa! Warner Bros. LP W 1661/WS 1661 Side 1 "I'm In Love With My Little Red Tricycle" "Photogenic, Schizophrenic You" "Marching Off To Bedlam" "Doin' The Napoleon" "Let's Cuddle Up In My Security Blanket" "They're Coming To Take Me Away, Ha-Haaa!" Side 2 "Bats In My Belfry" "Dr. Psyche, The Cut-Rate Head-Shrinker" "I Live In A Split Level Head" "The Nuts On My Family Tree" "The Place Where The Nuts Hunt The Squirrels" "I'm Happy They Took You Away, Ha-Haaa!" (by Josephine XV) Singles 1966 "They're Coming To Take Me Away, Ha-Haaa!" / "!aaaH-aH ,yawA eM ekaT oT gnimoC er'yehT" Warner Bros. (5831) 1966 "I'm In Love With My Little Red Tricycle" / "Doin' The Napoleon" Warner Bros. (5853)
Archie Bell and the Drells with Tighten Up. Archie had a more famous brother named Ricky Bell. Ricky was an All American running back for USC and rushed for over 1800 yards in 1976. He was the first pick in the 1977 draft by the Tampa Bay Buccaneers. Ricky died of heart disease in 1984 at the age of 29. Archie is still recording and has gotten into blues and country music
Alvin and the Chipmunk's Christmas song has got to be a bigger hit than Witch Doctor. They still play it every year at Christmastime.
The 80's had some awesome one hit wonders. Tainted Love, Hold me now, always something there to remind me, true, the list goes on and on for days.