The Best Rock Songs from Sesame Street

For more than 20 years, puppeteer Kevin Clash has been the voice behind the lovable red monster on Sesame Street. Both Clash "and" Elmo talk with Terry Gross about performing with Jim Henson, and creating a fun, educational experience for preschool-aged children.

Four decades after its premiere, Sesame Street is the same happy neighborhood it always was. TV critic David Bianculli takes a look at the newest episode -- which features special guest Michelle Obama -- and assesses the show's enduring legacy.

Jeff Moss was one of the original creators and writers of "Sesame Street." He created Cookie Monster and Oscar the Grouch, and wrote such songs as "Rubber Ducky" and "People in Your Neighborhood." He has won 13 Emmy's, four Grammy's, and an Oscar nomination for his work on "Sesame Street" and with the Muppets. Moss is also the author of four books for children, the newest of which is "Hieronymus White: A Bird Who Believed That He Always Was Right."