OK, we've learned a lot on this front. We do our live streams the way the artist asks us to - sometimes, they prefer a private event with pre-registration. Sometimes, they'd rather we just lob it up on Facebook or anyone to watch. And other times, they ask us not to live stream at all.
We'll announce if, and how, a live stream will work for each concert -- just keep an eye on your concert invitation (or the website) for details.