In 1950, Floren, who was performing with a music group known as "The Buckeye Four", went to a dance at the Casa Loma Ballroom in St. Louis, Missouri at which the Lawrence Welk Orchestra was then playing. When the maestro recognized the accordion virtuoso in the audience, he invited him to play a number with his band. The number turned out to be "Lady of Spain", and from the overwhelming positive response from the audience, Lawrence hired Myron to be a permanent member of his band. "Lady of Spain" also became Floren's trademark song and he played it countless times on the Welk show.