There are a lot of Johnnies out there. So many, in fact, that they have had to start teaming up together because they've run out of people with other names to partner. I wonder why poor John felt he had to shorten his name? Probably forced into it by some record company suit.
CC - apologies if I have inadvertantly complicated things for your Double J post next week.
"Lonely Island Pearl" - Johnnie & Jack
"Over The Mountain, Across The Sea" - Johnnie & Joe
"Bumper To Bumper" - Johnny & John