Iggy Azalea's 'Fancy' is everywhere! From a lip syncing viral video to a pregnancy parody, everyone is rocking out to the chart-topping hit. The latest performers putting their own special spin on 'Fancy'? Iconic rockers Crosby, Stills & Nash, alongside Jimmy Fallon, who was impersonating Neil Young.

Last night (July 7) on 'The Tonight Show Starring Jimmy Fallon,' the host and legendary musicians covered Iggy's hit with a folksy twist. While the original version kicks off with an electro beat and the singer's confident rapping, the 'Tonight Show' rendition opened with Fallon-as-Neil-Young strumming a guitar. He even channeled Neil's signature vocals before launching into a harmonica solo.

Jimmy was intriguing enough, but when he was joined onstage by Crosby, Stills & Nash, the audience went wild. Together the four men harmonized 'Fancy,' while adding a country rock spin to the pop hit. Iggy's version is catchy, but we love this one too!

Check out Jimmy Fallon channeling Neil Young in a performance of 'Fancy' with Crosby, Stills & Nash in the video above!

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