This is the intro/lower part, that simply continues through the
whole song:
E-----------------------------------------------------------------|B-----------------------------------------------------------------|G-------------------------2---------2-----------------------------|D-----2---------2-------2---2-----2---2---------------------------|A---2---2-----2---2---3-------3-0-------2-------------------------|E-0-------0-3-------2---------------------------------------------|
Then, after the brief intro, just add the following chord sequence:
Em G Am C
Add two parts water, mix briefly, and sing...you've got it. :)
It'll probably take one or two listens through the song to get the
part down correctly, but that should be it...it's not that difficult.