Re: 2 chord songs? B

I was playing "Put the lime in the Coconut" by Harry Nilsson with G7 and D7 back and forth.
I look it up on you tube for alchoholryan and I see Nilsson playing it all with a C7 chord only.
http://www.youtube.com/watch?v=5LxC3M-Yngs
I don't care. I'm sticking to my arrangement. lol
toots

We pronounce it "Guf Coast".
Ya'll wanna go down to the Guf?