Meghan Trainor and Alanis Morissette Perform 'Ironic' Dressed as Chickens on 'Tonight Show'

This might be the weirdest thing that Jimmy Fallon has gotten celebrities to agree to on his late-night show.

This might be the weirdest thing that Jimmy Fallon has convinced celebrities to do on The Tonight Show.

On Tuesday, musicians Meghan Trainor and Alanis Morissette joined Fallon for a performance of "Ironic," off of Morissette's 1995 album, Jagged Little Pill. However, instead of singing the actual words to the classic tune, they clucked along to the song while dressed in chicken costumes.

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As if that weren't bizarre enough, they named their group the Jagged Little Chicks.

It has been 20 years since Jagged Little Pill was released and when ETonline spoke with Morissette this summer, she admitted that she had no idea how wildly popular the album would become when she was writing it.

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“I just remember not wanting to stop until I wrote a record that really represented where I was at and all my humanity,” Morissette recalled. "I really did think I was the only human being on the planet going through whatever it was that I was going through at the time. So when people connected with it in the way they did, I felt less alone."

She also didn't predict she would be clucking "Ironic" on late-night television.