Secret Ninja

So apparently there was some kind of secret Keller Williams concert at the Recher Theatre Saturday night. I had not heard anything about this and it certainly wasn't publicized on the Recher website or Keller's. My friend said her sister went, and that she might have found out about it from a email she received offering her free tickets or something like that.

If you know anything about this or were at the show, please fill me in. How did you hear about it, how did you get tickets, what is some kind of special benefit show, etc...?