By Jennifer Armstrong
Updated March 22, 2009 at 07:54 AM EDT

Vanessa Redgrave will go ahead with a special performance of The Year of Magical Thinking — a one-woman stage show based on Joan Didion’s wrenching account of losing her husband and daughter — despite daughter Natasha Richardson’s recent death, the New York Post reports.

The performance at New York’s Cathedral at St. John the Divine is scheduled for April 27 as a UNICEF benefit. The Tony Award-winning actress’ performance, scripted by Didion and directed by David Hare, won acclaim on Broadway in 2007 and at the National Theatre in London last year.