U must be so excited for the debut of this One Direction song! Of all the things to sing about, One Direction has chosen U. What an unbelievable, unique, and useful letter. Subscribe to the Sesame Street Channel here: http://www.youtube.com/subscription_center?add_user=SesameStreet You can catch Sesame Street in the morning and the afternoon, weekdays on PBS. For more fun games and videos for your preschooler in a safe, child-friendly environment, visit us at http://www.sesamestreet.org Sesame Street is a production of Sesame Workshop, a nonprofit educational organization. The Workshop produces Sesame Street programs, seen in over 150 countries, and other acclaimed shows, including The Electric Company. Beyond television, the Workshop produces content for multiple media platforms on a wide range of issues including literacy and numeracy, emotional wellbeing, health and wellness, and respect and understanding. Learn more at http://www.sesamestreet.org.