The vocals would come from recordings and likely a backing track would be used too. As shown in the Ronnie James Dio video, there could also be a live band.
Probably most people would agree it would have been wrong to use a Prince hologram when he had spoken out against it. So I’m glad it didn’t happen. I thought it was so neat when the city lights lit up purple and you could see the Prince symbol.
My guess:
Don H - yes, provided he exercises creative control and gets a cut of 30% of the profits
Joe - yes
Timothy - yes
Don F - no
Bernie - hell no
Randy - <
crickets>
I have no idea what Cindy Frey would say.