Look At This List of Performers Who've Died During Performances Throughout History

I'm sure it's nothing.

No doctors in the house.

Some of them are really reaching where they did not die during a performance but after or in between it.

Such as this one:
Actor Jon-Erik Hexum died after shooting himself with a blank pistol. On 12 October 1984, the cast and crew of the TV series Cover Up were filming the seventh episode of the series, "Golden Opportunity", on Stage 17 of the 20th Century Fox lot. One of the scenes filmed that day called for Hexum's character to load blanks into a .44 Magnum handgun. When the scene did not play as the director wanted, there was a delay in filming. Hexum became restless during the delay and began playing around to lighten the mood. He had apparently unloaded all but one blank round when, at 5:15pm, he spun the cylinder and, as if playing Russian roulette, put the revolver to his right temple and pulled the trigger. The force of the blank round was sufficient to dislodge fragments of his skull, which acted as projectiles in lieu of a bullet loaded in the cartridge. The skull fragments were propelled into his brain.

And:
British comedian Eric Morecambe collapsed from a heart attack as he left the stage of the Roses Theatre in Tewkesbury following a performance; he died in hospital a few hours later.[31]

British actor-comedian Leonard Rossiter died of a heart attack in his dressing room at the Lyric Theatre, London whilst preparing to go on stage during a performance in Joe Orton's play Loot.[32]

Singer Tiny Tim suffered a fatal heart attack while turning to leave the stage during a benefit concert in Minneapolis.

That's Wikipedia for ya.
Unreliable and full of shit as always.

I'm sure all you village idiots will take over the thread!

yes, vaccine