Some of their reactions are priceless.
A clip circulating online has some debating the words that are coming out of the beloved puppet’s mouth.
And to confuse the heck out of Elmo, Grover and Cookie Monster.
To hear Nancy Kanter tell the story, it was her favorite part of working on Sesame Street -- being able to walk down to the stage while scenes with the Muppets were being shot .
Grover and Abby also discussed a few other A-list "Sesame Street" visitors, including Stevie Wonder, One Direction and Janelle
Abby Cadabby and Grover leave "Sesame Street" and join us at the HuffPost Live Studio to chat with Nancy about meeting First Lady Michelle Obama.
And here's who stopped by Sesame Street last season... Part of the curriculum this year is "to get children to have a better
Murray Monster may not be as famous as his amphibious and porcine companions, but he is a key reason why his TV show, Sesame Street, is still thriving deep into its 42nd season.
Sesame Street has gone Google! Big Bird, Oscar the Grouch, Elmo and more Sesame Street favorites have all graced the Google
Follow HuffPostTech On Facebook And Twitter! Google is featuring these Sesame Street characters in honor of Sesame Street's
Which character do you hope to see next? Follow HuffPostTech On Facebook And Twitter! Google is featuring these Sesame Street
Google's Doodle has been on a Sesame Street spree! Google is featuring these Sesame Street characters in honor of Sesame