Dave Chappelle and Jon Stewart among stars to perform at 9/11 benefit show

Dave Chappelle (Owen Sweeney/Invision/AP)

Dave Chappelle, Jon Stewart, Jimmy Fallon and Amy Schumer are part of a star-studded group of comedians that will perform for one night only at Madison Square Garden to mark the 20th anniversary of the September 11 2001 attacks.

All proceeds from NYC Still Rising After 20 Years: A Comedy Celebration will benefit 9/11 charities.