In the clip, the wonderfully game actress stops by Elmo's pad to shake a tail feather, with help from a penguin choreographer. Can we hope for an appearance on "Yo Gabba Gabba!" soon?
The long list of important people who've found their way to Sesame Street includes luminaries like Cab Calloway, Buzz Aldrin, Alice Walker, Hillary Clinton, and Anderson Cooper, all willing to loosen up for a little educational lesson and a few laughs. Jon Hamm will be visiting this season as well, although chances are good that he will leave Don Draper at home. On the other hand, we can hope for a "Mad Men"/"Sesame Street" mash-up along the lines of "Upside Downton Abbey"!