The song was recorded in F.
The beginning starts out with F7 chords.
Then it goes into this riff during the verse:
e------------------------------|b------------------------------|g------------------------------|d-------------------0--3-------|a----------0--1--1-------------|e-1--1--4----------------------|
Chorus:
F / / / / G# / / / / Bb / / / / C# / / / / X2
Solo uses a COMBINATION of these notes:
e---------------------------------------------|b-----------------9------11---12--------------|g--------------------/10----------------------|d---------------------------------------------|a---------------------------------------------|e---------------------------------------------|