One Direction sing about the letter 'U' on Sesame Street

Sesame Street has been throwing down the gauntlet to competitor shows like Yo! Gabba Gabba that briefly stole the "Kid's Show With Awesome Musical Performances and Guest Stars Trophy." We've already revealed that R&B-android Janelle Monae stopped by the Street to teach kids about the word "yet", now the boys of One Direction are extolling the importance of a certain letter.

Check out a preview of "That's What Makes 'U' Useful" below:

Ugh. Sesame Street invented this educational children's television game, son! 

Seriousy though, the folks at Sesame Workshop have been killing it as of late. Don't believe me? Check out their Sons Of Anarchy spoof and report back.