There′s a reason that you′re in my head
And there′s a good reason why you′re in my bed
But there′s a reason that a you′re my girl
And there′s a reason that a you rock my world, you rock my world, you rock my worrrrrld

Cus you′re dirty
But you got a good heart
D-D-D-Dirty
But you′re not a cheap tart
Yeah Yeah Dirty
But you got a good heart
D-D-D-Dirty (Yeah)
But you′re not a cheap tart

There′s a reason why you′re in my head
There′s a very good reason why you′re in my bed
There′s a reason that a you′re my girl
There′s a reason why you rock my world

Cus you′re dirty
But you got a good heart
D-D-D-Dirty
But you′re not a cheap tart

(Guitar plays)

There′s a reason why you′re in my head
There′s a good reason why you′re in my bed
There′s a reason that a you′re my girl
There′s a reason that a you rock my world, you rock my world, you rock my worrrrrrld

Cus you′re dirty
But you got a good heart
D-D-D-Dirty
But you′re not a cheap tart
Yeah Yeah dirty
But you got a Big heart
D-D-D-Dirty
But you′re not a cheap tart

(Guitar plays)