Elmo and his friends are throwing a dance party, which provokes Wilmington actor Aubrey Plaza to show off her moves in the new "Sesame Street" special.
Stay calm and Elmo: 'Sesame Street' star gives holiday season advice Engineer Mark Rober and "Sesame Street" star Elmo chat with USA TODAY's Ralphie Aversa about their new special "Merry Giftmas" on ...