Kind of the whole song, bits of it! Sorry, it's by ear, and not entirely accurate, but 
very simple and repetitive.

Verse:
Am Am Em Em throughout the whole verse (play the Em's in double quicktime, if you listen 
to the song you'll hear the tempo)

Chorus:
Dm Am Em Am (last note before the next verse is Bb)

I hope this was helpful.

By Nat.