Watch One Direction On ‘Sesame Street’ Sing About What Makes ‘U’ Beautiful [VIDEO]

One Direction have made a pit stop from their world tour to teach the valuable lesson of what makes "U" beautiful on the new season of "Sesame Street." Harry Styles, Liam Payne, Zayn Malik, Niall Horan and Louis Tomlinson have reworked the lyrics of their smash hit "What Makes You Beautiful" to pay tribute to the 21st letter of the alphabet. "This letter is U, you know it's true," Payne sings in the preview for their appearance. "It starts some words that are more than a few."

The boys appear with a white background and a puppet U with eyes and a mouth in front of them dancing to their tune. Liam starts listing off words that start with the letter before Harry takes over and sings, "26 letters are in the alphabet, but we're here to sing about 'U'." The British-Irish boy band filmed their appearance back in December. Other celebrities scheduled to appear in the new "Sesame Street" season are, Tina Fey, Janelle Monae and Mackemore. Watch the One Direction preview down below and tell us what you think!

Although One Direction is enjoying some time off from their demanding schedule, they will continue their promotion of their latest album titled "Midnight Memories." Their latest efforst topped the Billboard 200 chart when it made its debut in the U.S. last year. Their third studio record hit the No. 1 spot, selling 546,000 copies in its first week, Billboard revealed. Zayn Malik, Harry Styles, Louis Tomlinson, Niall Horan and Liam Payne are on a three-peat stateside, with all their albums debuting at the top of the charts. Their debut album titled "Up All Night" soared with sales of 176,000 copies in March of 2012, while their sophmore effort, "Take Me Home," was massive with 540,000 copies sold later that same year. 1D solidifies its position as the top boyband of the moment and has the honor of being the third pop group of scoring multiple half-million sales weeks since Nielsen SoundScan started tracking numbers in 1991. The other two boybands were 'N Sync and Backstreet Boys.