The Mulcays were an American accordion duo consisting of Jimmy and Mildred Mulcay. They gained prominence during the 1950s and 1960s with their distinctive, lively style that combined popular tunes with a polka twist. Known for their virtuosic performances, the Mulcays effectively elevated the accordion to a lead instrument in their arrangements. Their most notable work includes the album "Polka Hits," which reflects their signature sound and continued influence in the genre.