People are sometimes surprised to learn that the prolific songwriting duo of Lennon and McCartney wrote hits for other artists, both individually and collectively.

• "Bad To Me" was a major hit for Billy J. Kramer and the Dakotas, as was "From A Window," also written by the Fabs.

• They wrote several hits for Peter & Gordon (Peter Asher's sister was at the time Paul's girlfriend), like "World Without Love," "Woman" (written by Paul under a pseudonym), and "I Don't Want To See You Again."

• Paul wrote "Goodbye" for Welsh singer Mary Hopkin.

There were more, but you probably wouldn't recognize the rest of them, since they weren't hits in the U.S.