In the song, the melody for the words "It ain't necessarily so" resembles the melody for the words "Bar'chu et adonai ham'vorach", at the beginning of the aliyah blessing before reading from the Torah.
The song has been covered a number of times during the Rock era. It was included as an album track by The Honeycombs on their debut-album, The Honeycombs in 1964. Released as a single, the song was a major Australian hit in 1965 for singer Normie Rowe,reaching number 5 on the Australian singles charts at that time. Also in 1965 The Moody Blues covered the song for their album, The Magnificent Moodies. The Moody Blues' version is notable for the fact that it was their first recording with band member Ray Thomas singing the lead vocals. In 1984 the song was released as a single by UK band Bronski Beat with Jimmy Somerville being the lead vocalist. Reaching number 16 on the UK singles charts, the song was taken from Bronski Beat's debut-album, The Age of Consent.