Dave Chappelle appeared as a surprise warm-up act at Chris Rock and Kevin Hart’s packed Madison Square Garden show Saturday night — where he riffed about “cancel culture” and his recent on-stage attacker.

The controversial comic, who was forced last week to move a Minneapolis show amid backlash, quipped that his LGBTQ-bashing jokes have made him such a pariah, “I had to sneak my way in here,” according to The Hollywood Reporter.

Dressed in a Nirvana T-shirt and smoking a cigarette during the brief opening set, Chappelle addressed an incident in which a 23-year-old bisexual rapper tackled him on stage with a weapon at LA’s Hollywood Bowl in May.

The under-fire funnyman said he hopes accused attacker Isaiah Lee gets monkeypox in jail —“not that he should die, but his ass should itch for four to six weeks.”