John Duff Lowe is a pianist from the middle-late 1950s, who was invited to play piano with The Quarrymen by Paul McCartney in 1958. Known to his friends as "Duff", Lowe was in The Quarrymen for two years, and was there when the band recorded a couple of songs for a vanity disc at Percy Phillips' home studio in Liverpool. The two tracks cut that day were "That'll Be the Day" and "In Spite of All the Danger". Lowe maintained possession of the tracks and, in 1981, sold the recordings to Paul McCartney. Their estimated value was around £12,000. McCartney had the record remastered and the songs appear on The Beatles' Anthology 1 album.
In 1994, John Lowe played again with The Quarrymen for the album Open For Engagements. Of the 1994 lineup, only Rod Davis (guitar) and Lowe (piano) played for The Quarrymen in the 1950s. John Lowe, Rod Davis, Len Garry and Colin Hanton now perform as John Lennon's Original Quarrymen at Beatles events around the world.
On 22 December 2014 John appeared on popular BBC 1 show Would I Lie To You?, in which Ricky Tomlinson revealed that Lowe had left the Quarrymen to join the young Tomlinson's band.