Verse: 
A, E, A break. 
A, D, A break. 
A, D, A, E, D, E, A 
The pre chorus ('They come on the scene...) is: 
F#, A, D, E (root note on the 7th fret of the A string). 
The Chorus: 
A, E, A break. 
A, D, A break. 
A, D, A, E, D, E, A 
(The part that goes "Dadada")