Mariachi Cobre is a traditional Mexican band originating from Tuscon, Arizona. The group is led and founded by brothers Randy and Steve Carrillo and friend Mack Ruiz. Mariachi Cobre has been a popular group since the late 1960s. The band has been the headline performance group at the Mexican Pavilion at Walt Disney World's EPCOT Center since it opened in Florida in 1981. Their instruments include the guitar, the violin and trumpet.