You can't tell me what to do anymore Cos I'm free as a bird and I'm glad to be Who I want to be Cos I've been under the thumb for too long With you telling me I've got it wrong again And you can't pretend But I don't care what you 're thinking at all, Stop trying to make me feel small, Cos I think you're a big know-it-all. Look here darling, I'll never be you Cos it's crazy for there to be two of us Isn't one enough? But you keep trying to take over And I'm not going to surrender, Cos you've got some gall And I think you're a big know-it-all. You can't tell me what to do anymore Cos I'm free as a bird And I'm glad to be Who I want to be. Cos I've been talking it over And now I'm looking for closure Cos it's no ball When you live with a big know-it-all. And I think you're a big know-it-all.