Prior to the first take, they warmed up with a version of Leiber and Stoller’s ‘(You’re So Square) Baby I Don’t Care’. The song had been made famous by Elvis Presley in the 1957 film Jailhouse Rock, and was also recorded the following year by Buddy Holly.
The Beatles performed ‘(You’re So Square) Baby I Don’t Care’ again on day four of the Get Back/Let It Be sessions, on 7 January 1969. That time it was begun and quickly abandoned by John Lennon, but picked up immediately after by George Harrison and Ringo Starr.
Well you don’t know any dance steps that are new
And no one else could love ya like you do, do, do, do, do
You don’t like crazy music
You don’t like rocking bands
You just wanna go to a movie show
And sit there holding hands
You’re so square
Baby I don’t care
Baby, I don’t care
Yeah I don’t care
Hey I don’t care, yeah