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)