KISS Rocks Vegas.
KISS, got old.
The only info I can find on this MTV special tonight is that it was "First aired 6/11/2016". It appears to be all the original members (the LG and drummer, when filled in with others, had different makeup for each; these guys have the original makeup; I thought one of them died?).
The mix isn't very good, but the vocals (both leads and harmonies) are
spot on. Don't know if they're pre-recorded, Auto-Tuned live, or they actually sing that well (they didn't the one time I've seen them live, the tour when they first put the makeup back on (with all original members)).
The sad thing is, though, they're old; they don't have that
showmanship that made them special, back in the day, and the crowd looks equally excited, fresh out of their city council/PTA meetings.
Heh, it just helped, a LOT, to turn it up.