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18 November 2014, 10:02
Prepare to go into adorbs overload as the boys teach us all about the letter 'U' thanks to their hit song.
If it's even possible, we love One Direction even MORE after watching their full appearance on kids show Sesame Street.
The boys first teased their appearance on the US institution earlier this year, and now their full video has been revealed online… which sees them reworking their signature hit single 'What Makes You Beautiful'.
For their appearance on the show the boys aim to teach children about the letter 'U', and adapt their hit song lyrics to showcase the different words starting with 'U'. SO ADORBS!
Plus it doesn't hurt that a load of our favourite Muppet characters show up for the promo, and that Harry Styles seems SO into it!