I really want to play this song: http://www.youtube.com/watch?v=RhnKlwHedWU

"I am the Upsetter" by Lee "Scratch" Perry.

I'm trying to figure out the chords. It sounds like it's in C#. I think it goes like this:

C# | G# | C# | G# -- for the verses. And for the chorus, I figure there is an F# in there? I'm having trouble. Can anyone point me in the right direction here?

Thank a lot.