The Persuasions bring us the best of a cappella doo-wop. A new, hip-hop band out of DC, the Cornel West theory drop some science on us. The week closes out with 20 versions of Jobim’s "Dindi" featuring Antonio Carlos Jobim, Stéphanie Laliberté, André Mehmari, Lyambiko, Harvey Mason, Norman Connors featuring Jean Carn, Jamie Lynn Fletcher, Eugene Maslov, El Debarge, Carmen McRae, Landes Jugend Jazz Orchester, Natalie Cole, Flora Purim, Gene Bertoncini, Sarah Vaughan, Emilio Santiago, Com Voce, John Beasley, Mary Stallings, and Jon Lucien.