Before they where famous what duo formed The Nurk Twins in Liverpool?

John Lennon and Paul McCartney
https://www.dailymail.co.uk/tvshowbiz/article-1078752/Meet-The-Nerk-Twins--John-Paul-called-gig-double-act--8211-drinkers-sleepy-Berkshire-pub.html

John Lennon & Paul McCartney, pre Johnny and the Moondogs.
http://www.beatlemania.00band.com/

It's The Nerk Twins:

Another name associated with the Beatles, or at least with John and Paul, is the "Nerk Twins." This was a name used by John and Paul when they appeared as a duo at the "Fox And Hounds" in Caversham, Berkshire. They had spent some time with Paul's cousin and in return for working behind the bar were given the opportunity to perform Saturday night April 23 and again Sunday afternoon April 24. The alternate spelling "Nurk Twins" is also associated with John and Paul but this name appears to have been used by Paul and his younger brother Mike when the two of them would perform at family parties.

http://www.meetthebeatlesforreal.com/2013/09/the-nurk-twins.html