Submission of art porfolio

I’m an international student applying early decision to Stanford. I am applying for physics but theater is something that I’m really passionate about and I have spent a lot of time and effort on it. Since it plays a huge role in my application, should i submit an art portfolio or should i just shape one of my essays around theater?

I know someone who managed to send his art portfolio across and that was viewed favourably (he got in). Hope that helps