Miley Cyrus Sings 'Party in the USA' on NYC Subway - Watch Now!

What an epic, impromptu performance from Miley Cyrus!

The 24-year-old “Inspired” singer wore a disguise alongside Jimmy Fallon and they went busking together on a subway platform on New York City.

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Not only did they sing “Jolene,” but then Miley pulled out her classic, “Party in the USA,” and a huge crowd formed in the Rockefeller Center station.

Watch Miley and Jimmy performing on the subway below! We’re so jealous of those MTA riders…