Around that same time, Chuck Berry also scored his one and only #1 song with "My Ding-A-Ling". All those rock and roll classics Berry sang and THAT childish ditty was the only song that took him to the top of the charts!
Both songs were laden with sexual innuendo. But I was only 9 or 10 years old at the time so took a few years to pick up on it.
Perhaps the innuendos had something to do with each song's popularity?