Episode 4006

Zoe feels so happy that she makes up her own song about being happy. Soon, many other street residents, including Big Bird and Rosita, contribute to the song with things that make them happy.

Segments

 * Letter of the Day: Super Grover makes a plan to keep Cookie Monster from eating the S cookie.
 * Ernieand Bert sing "What's The Name of That Song?"
 * Number of the Day: A giant 20 shows up.