its just Em G A and D throughout the whole song. or at least thats what i thought it like. my first tab anyway. it sounds pretty accurate. Maybe not so for the A part but its alright.. Flo Rida) Em G D You spin my head right round, right round A When you go down, when you go down down (Katy Perry) Em G D You spin my head right round, right round A When you go down, when you go down down