It all began in 1969 on a street where colorful Muppets and humans lived -- and learned -- side by side. Today, 50 years later, we are excited to announce a yearlong anniversary celebration to mark the occasion! Learn more: https://m.sesame.org/2G8Zsph #ThisIsMyStreet | Sesame Street

One of The Muppets most beloved songs was first performed on Sesame Street fifty years ago. Enjoy "Mah Na Mah Na" from November 27, 1969. #Sesame50 | Muppet Central