3 June 1964
In the morning Ringo Starr collapsed with tonsillitis and pharyngitis during a photo session for the Saturday Evening Post newspaper in Barnes, north London.
He was taken to University College Hospital where he was ordered to rest completely. Unfortunately for him, The Beatles were due to begin their world tour in Denmark the following day, and it was too late to cancel.
George Martin suggested they draft in session musician Jimmie Nicol as a temporary replacement.