The astonishing creativity and impact of The Beatles on pop charts of the 1960s was not limited to the band’s own releases. In the US, UK, Canadian, Australian, and New Zealand charts there were in fact more chart entries in the 1960s – an even 100 – with Lennon-McCartney (and Harrison) songs by non-Beatles than the 85 entries recorded by the group itself.
These ranged from straightforward cover versions to odd adaptations, but their success appears to be related to the underlying melodicism (catchiness) of the tunes and the market’s familiarity with the originals. Broadly speaking, the non-Beatle Beatle songs fall into three categories: songs that were written for other artists and never recorded by the Beatles themselves; opportunistic covers of Beatles album tracks that were never released as singles by the group; and re-interpretations of Beatles hits.

