Lady Jane

From Wikipedia:

“Lady Jane” is a song recorded by the English rock band the Rolling Stones. Written by the group’s songwriting duo of Mick Jagger and Keith Richards, the song was initially included on the band’s 1966 album Aftermath.

The song showcases Brian Jones’ instrumental incorporation of baroque rock as it was beginning to be introduced. In the US and Germany, the song was released as the B-side of the “Mother’s Little Helper” single on 2 July 1966, and peaked at number 24 on the Billboard Hot 100 chart. […]

On January 14, 1969, during the Beatles’ “Get Back” sessions, Paul McCartney was at the piano and played a few lines of “Lady Jane.” One might wonder if he was thinking of Jane Asher, with whom he ended his relationship in July 1968, while playing the track.

Bootlegs

Cover versions played during the "Get Back" sessions

"Lady Jane" was covered during The Beatles' "Get Back" sessions in January 1969. Here is the complete list of covers recorded by Paul McCartney, either alone or with other Beatles, during these sessions: