So there's .. There's a reason that you're in my head And there's a good reason why you're in my bed 'Cos there's a reason now that you're my girl There's a reason that ... you ... rock .. my ... world You rock my world You rock my world 'cause you're dirty But you got a good heart D-D-D-Dirty But you're not a (cheap tart) Yeah, you're dirty But you got a good heart D-D-D-Dirty 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 Ooo, there's a reason now that you're my girl There's a reason why you rock my world Cos you're dirty But you got a good heart D-D-D-Dirty But you're not a (cheap tart) 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 now that you're my girl There's a reason why you rock my world You rock my world You rock my world Because you're dirty But you got a good heart D-D-D-Dirty But you're not a (cheap tart) Yeah x2