Watch One Direction's Harry Styles and Liam Payne Sing with Sesame Street's Bert!
updated 06/25/2014 AT 07:30 PM EDT
•originally published 06/25/2014 AT 11:00 AM EDT
Ernie's roommate is normally known for being a neurotic curmudgeon. But when he had a moment of downtime with One Direction's Liam Payne and Harry Styles, he couldn't resist getting them to sing along in an impromptu rendition of the ABCs.
Things start off great for the puppet and his pals but the song gets a little off-track as the trio ramps up for a big finish.
Payne and Styles – along with their fellow British boy band members Zayn Malik, Louis Tomlinson and Niall Horan – will appear on the 45th season of the PBS children's program this fall, when they will sing a parody of their hit song "What Makes You Beautiful."
A sample lyric from their parody: "This letter's U/You know it's true/It starts some words/There are more than a few-ew-ew..."