Secret

Here's the little keyboard riff that plays throughout the song.  It sounds best if you
up the low end on your amp and pluck the string like you would a bass.
e---------5-55-9-7-5---5-77-79-7-55---| 
B--55-555------------7-------------7--| 
G-------------------------------------| 
D-------------------------------------| 
A-------------------------------------| 
E-------------------------------------| 

Yup.  It's that simple.