Why did Yankee Doodle stick a feather in his hat and call it macaroni?

USA

Back in Pre-Revolutionary America when the song 'Yankee Doodle' was first popular, the singer was not referring to the pasta 'macaroni' in the line that reads 'stuck a feather in his hat and called it macaroni.' 'Macaroni' was a fancy ('dandy') style of Italian dress widely imitated in England at the time.