#2
Hey tonifr99 the Refrain from "why you messing with my life is:

C am G am
Why you messing with my life? (Why you messing with my life?)
C F am
Why you messing with my life? (With my life, year)
C am G am
Why you messing with my life? (Why you messing with my life?)
C F am G
Why you messing with my life? (Why you messing?)

jokiku
#3
This comment might be a little late, but I'm very sure the chords are just Gm, E and D with the top notes being Bb, Bb, and A on the piano (the chords are actually just the riff from the beginning and you can play along the whole song with these chords). after the modulation of course this goes up by 1/2 tune: Gm#, F and D#