Join Wild Nature Survivor Guy, Jimmy Fallon, as he drops by Sesame Street to show us that nature is all around-even in the city. Actress Debra Messing explains the word nature," and Ziggy Marley sings about the joys of being barefoot. Plus, Abby and her Flying Fairy School friends get ready for a dance recital, while Elmo's World is all about helping. Finally, Murray hits the street to find out the word of the day. Brought to you by the letter D and the number 5.