Gaga was HUGE in Asia (maybe except Indonesia ) during the BTW era. I remember people in different countries doing flash mobs to welcome her while she was doing the BTWB in Asia. Also that video of her almost crying at how people sing along to lyrics to Hair when it was released for less than a week
It's just how the pictures makes it look, this tour was in the mid 1980s under stadium lights. Here's another angle, and you can see the collar and shoulder loops are there. This is definitely this outfit.