|Mean Mr. Mustard|
|Written by||John Lennon|
|Released||26 September 1969|
|Recorded||24, 25, 29 July 1969|
|Abbey Road guide|
Written in India, Lennon said that the song was inspired by a newspaper story about a miser who concealed his cash wherever he could in order to prevent people from forcing him to spend it. On reflection, he didn't think highly of the composition, describing it in Anthology as "a bit of crap I wrote in India."
A demo version of the song was recorded in May 1968 at Kinfauns, George Harrison's home in Esher, and appears on Anthology 3. In that version, Mustard's sister is named Shirley. Lennon changed it to Pam when he saw the opportunity to ease the segue into the song "Polythene Pam", which follows "Mean Mr. Mustard" on the album. According to Lennon, "In 'Mean Mr. Mustard', I said 'his sister Pam'—originally it was 'his sister Shirley' in the lyric. I changed it to Pam to make it sound like it had something to do with it." Additionally, the original version of the song was a quieter acoustic rendition and was over 4 minutes in length.
The version in the Sgt. Pepper's Lonely Hearts Club Band film was performed by Mean Mr. Mustard (played by Frankie Howerd) and his evil robot companions named the Computerettes. As with the performance of "She's Leaving Home" also in the film, the computerized singing of the Computerettes was performed by the Bee Gees.