An excerpted clip of Robin Williams' stand-up comedy performance for ‘An Evening with Friends of the Environment’, a charity concert held in aid of the protecting the environment, featuring celebrity mothers Olivia Newton-John, Bette Midler, Goldie Hawn, Cher, Meryl Streep, Lily Tomlin… and Robin Williams. Filmed at the LA outdoor Greek Theater before a live audience, the celebrity cast sang "What a Wonderful World" at the concert's finale.
