Maintaining a monotone delivery of the chorus, but with a little added country sincerity, Stephen Colbert sang Rebecca Black's bizarre viral YouTube hit "Friday" after a deal made with Jimmy Fallon.

Maintaining a monotone delivery of the chorus, but with a little added country sincerity, Stephen Colbert sang Rebecca Black‘s bizarre viral YouTube hit “Friday” after a deal made with Jimmy Fallon.

Earlier last week, Fallon said if he could raise $26,000 for a charity before April 1, Colbert would have to perform “Friday” on “Late Night With Jimmy Fallon.” The “best friends for six months” delivered on their promises, culminating in an elaborate performance of the song before the weekend.

Several of Black’s memorable music video moments were featured in Colbert’s version alongside The Roots and other guests: There was a rap-break behind a fraction of a car (pushed by a stagehand) and Fallon explained the days of the week using a daily calendar with pen-and-ink drawings in an autotuned voice.

The most absurd/surprising moment was past “American Idol” winner Taylor Hicks busting through a giant calendar to join in the singing with his harmonica. He was followed by The Knicks dancers, a beekeeper, a Yeti and a man holding a QR code to bring the partying, partying to an end.

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Here’s the “Late Night” performance, followed by the inspiration for it all, Black’s original video.