Unless it's an "event" (opening night), you'll be fine

And yes, there are people who will show up looking like they got lost trying to find the Phish concert.

I'm going to NYC soon and planning to see a concert at Lincoln Center. What is the appropriate dress code? I have never been. Is it like the Kennedy Center where the attire ranges wildly from jeans-super fancy all for the same performance? I am planning to wear a black or cream colored dress and heels (nothing fancy, but something I would wear to a work event), but I want to make sure I won't be underdressed. Any tips? Thanks!