Depending on how literally you want to be with the spelling, a "megadeath" is 1 million dead. That would certainly be a memorable concert...for any survivors.
I found out about them because they're coming to my country this winter and they're gonna perform on stage with my favorite band! Infected rain is a very cool band, it's in my top 10!
Alice In Chains. Maybe Bone Thugs N Harmony, a bunch skeletons like from Pirates of the Caribbean, up on stage rapping. Du-rags instead of pirate hats.
Infant Annihilator, Waking The Cadaver, Sperm Swamp, Goat Whore, The Black Dalhia Murder, Dying Fetus, Rapeman, Cock And Ball Torture, Dogshit Sandwich, Limp Bizkit, Diarrhea Planet, Cattle Decapitation, Heaven Shall Burn. The list goes on.
"The Rolling Stones" would literally be a concert where stones roll around the stage. Imagine Mick Jagger trying to dance among tumbling rocks – it'd be a wild, rock-solid performance!
Cannibal Corpse or Butthole Surfers