The Tonight Show Starring Jimmy Fallon Season 4 David Spade, Desus & Mero, Penn & Teller Season 4, episode 179 David Spade, Desus & Mero, Penn & Teller July 28, 2017 45 min Previous episode Michael Strahan, Jill Kargman, Slayer Next episode Idris Elba, Ali Wentworth, Tame Impala