Run Out Groove Recording

On April 21 1967, The Beatles entered Studio 2 at EMI recording studios in London to record some noises for the run-out groove of the new upcoming LP "Sgt. Pepper's Lonely Hearts Club Band". A microphone was set up and it was decided to simply project random thoughts, words, whatever as they stood around this microphone. The results (supposedly from take 1) are barely three seconds of high pitched or sped up voices that appears on the last groove of the original UK LP.
The mono version of the British LP has this in mono obviously and on the stereo version the run out groove pans from one speaker to the next. In-genius.
The North American market did not have this particular inner groove gibberish as it only appeared in the UK during the cutting of the LP at EMI. Later in 1980, the North American market finally got their version with the commercial release of the Capitol/EMI LP "Rarities" and was featured as the last track of side 2. Another version of the groove chat was released on the commercial compact disc version of "Sgt. Pepper's Lonely Hearts Club Band" in 1987 with the inner grove chat being repeated 23 times over and over to try and simulate what would have happened if the set was to be played as a vinyl LP on a turntable with a manual arm.