If you have an android or iOS device, download the Instagram app and search #ladygaga. If there's a show that night, pictures from the show will pop up. Keep looking at photos until you find one that is tagged with the location. Click on the location (normally the venue) and you will be taken to a page with a bunch of photos from the show.
As for shows being sold out, it doesn't matter. Shows that do not sell enough tickets to profit, are cancelled. The shows may not be sold out 100% but the venues are packed either way.
She's got two opening acts, the first one usually being Lady Starlight.
I know but they were complaining about how she has an irrelevant opening act and wishing she choose someone better. That one is Madeon IMO, it's not like Starlight is the only one opening for her!
