Manson dedicated his song "Disposable Teens" to Paris, 15, saying, "This song is for Paris Jackson" during his Thursday night show.
The rocker then shocked his audience by simulating a suicide attempt on his own, dragging a meat cleaver across his forearm. Apparently, Paris had attempted to do the same, the Hollywood Reporter said.
Paris is currently recovering in a hospital following her attempted suicide this week.
The rocker, meanwhile, has extended an invitation to her to attend his shows anytime she wants.