The members of One Direction have been churning out pop hits since they came together after competing on “The X-Factor,” but their latest musical endeavor involves a much simpler tune.

In advance of the group’s upcoming appearance in “Sesame Street’s” 45th season this fall, the hit PBS show has released a sneak peak clip of One Direction’s Harry Styles and Liam Payne singing the alphabet with “Sesame Street” character Bert.

At Payne’s suggestion, their acapella rendition of the ABCs ends with a strong crescendo as the trio try to keep their voices in harmony.

The end of the video also hints that the boy band will take young viewers through the alphabet, highlighting letters like U in a parody of their hit “What Makes You Beautiful.”

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