Anyone know if you need photo ID to attend concert at the Toyota Center?

I have a concert on the 20th and was checking the venue's website, and noticed it said what to bring and it listed a phone, wallet with photo ID, and The card you used to purchase your tickets. I haven't gotten my photo ID, even though I'm over 18. My parents have attended a concert there once, and my mom said that they didn't ask for one, but I still want to double-check. I'm also attending the concert alone, which I have never done, so I'm also nervous because of that.