This is just a part from the beginning to the chorus.
The whole song has four chords. Enjoy!

Verse:

Dm (xx0231@1)                  BbShe's (x1333x@1)waiting for her man to go to work
F (133211@1)                  CThen (x32010@1)calls me on the phone saying he's such a jerk
DmI (xx0231@1)feel like a thief in the day
      BbAnd (x1333x@1)a thief in the night, but it's just a fight
FWhy, (133211@1)why, why, don't he treats you right
CHe (x32010@1)should be the one to apologise
      DmWe're (xx0231@1)going upstairs get away from the past
BbThen (x1333x@1)the phone rings, I hear your husband ask
   FIs (133211@1)someone in the back, who's that
      CWho's (x32010@1)that, who's that, who's that

Chorus:

Dm (xx0231@1)          BbIn (x1333x@1)your head, in your head
     F (133211@1)               CMohombi, (x32010@1)Mohombi, Mohombi
              Dm (xx0231@1)          BbWho's (x1333x@1)in your head, in your head?
     F (133211@1)               CMohombi, (x32010@1)Mohombi, Mohombi