Peter Daniels used software to strip away the music, leaving just the vocals.
A Beatles superfan has found a foul-mouthed ending to one of the band's biggest hits, that has been hidden for nearly 60 years.
The Sun reports a librarian called Peter Daniels used software to strip away the music on Twist and Shout, leaving just the vocals.
Smith claims he can hear John Lennon shout a curse word at the end of the track.
Lennon was sick with a cold and fever during recording for Twist and Shout in 1963, a song which has been described as a 'larynx tearer.'