Isn't this 'Ironic'? Formerly super-serious rocker Alanis Morrissette clucks her '90s hit dressed as a chicken

Alanis Morrissette became a '90s star by ripping into an ex in her smash hit 'You Oughta Know', so we learned early on not to expect barrels of laughs from her.

Time must have mellowed the now-41-year-old because she's given us one of the most hysterical things we've seen in a long time.

Alanis put on a chicken costume and joined Meghan Trainor, Jimmy Fallon and some other guy to cluck her '90s hit 'Ironic'. Yes, cluck.

You've got to see this to believe it, so watch it above.

We don't know what's more bizarre: the clucking, the costumes or that duelling-chickens moment between Alanis and Meghan.

If the Jagged Little Chicks ever come to a town near us, we're so there.