05/18/2010 12:20 pm ET Updated May 25, 2011

Bill Cosby Performs Sit-Down Stand-Up (VIDEO)

Legendary comedian Bill Cosby was the guest last night on "The Tonight Show," and he gave the audience a taste of his stand-up routine (albeit sitting down). Cosby, now at age 72, dismissed the audience's applause saying, "You don't mean that," before launching into his material about growing old. If we learned anything from his routine, it's that growing older means having very complicated phone conversations with people just as old as you.