The folk-rock supergroup appeared on The Tonight Show to perform Iggy Azalea's hit – with intricate harmonies

Credit: Douglas Gorenstein/NBC/NBCU Photo Bank

Iggy Azalea‘s music is fine, but we can all agree it’s missing one thing: classically precise, four-part harmonies.

Fortunately, we have Jimmy Fallon for that.

On Monday night, the late-night host showed off his impeccable knack for combining the pop culture of today with the musical legends of yesterday, bringing out David Crosby, Graham Nash and Stephen Stills to perform a beautiful folk-rock rendition of Iggy Azalea’s "Fancy."

As for occasional bandmate Neil Young, he was there in spirit, sort of – Fallon took the opportunity to showcase his impression of the curmudgeonly Canadian rocker, which you may remember from performances of "Whip My Hair" and the Fresh Prince theme.

See the highlights above, then watch the full performance below:

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