It may surprise some to hear that "Sesame Street" has a legacy of musical guests ... a songs about "Gratitude" she performs with muppets Elmo, Abby and Gabrielle, to which she brings her singular ...

Elmo loved his time at Sesame Street,” the message said in part. “Elmo is going to miss his friends Big Bird, Cookie Monster, Ernie, Bert, Abby ... Like hugs. Elmo LOVES giving hugs.