Key of G chords, Key of Bb/Bb. Capo 3.
Don't be afraid, it's only love (x4)
Love is simple (x3)
Don't be afraid, you're already dead (x4)
Love is simple.
I personally do the Same chord progression for the "da-da-da" part as well, but you
figure another one out if you want. All I know is this matches the key of the recording of
song. Ear training is how you do it.