The legendary Aerosmith guitarist has collapsed while on stage with his side project in the US.
The 65 year old was playing with The Hollywood Vampires, the super-group he formed with Alice Cooper and Johnny Depp, when he went into cardiac arrest halfway through the show.
Videos posted online show Perry shredding on his guitar before he stumbles behind a speaker and off to the back of the stage.
Reports say he lost consciousness and police on the scene revived him.
He's now surronded by friends and family and is in stable condition. Best wishes to Mr Perry!