In the summer of 1933, Blevins went with two of her brothers to the Chicago World's Fair. The trip's mission was to enter a large, prize watermelon the Blevins had raised, and Rubye was invited to go, mainly to meet up with two pen pals, Millie and Dolly Good (The Girls of the Golden West). While in Chicago, she auditioned for a crooner's role. However, she began laughing halfway through the song. The producer on hand fell in love with her "giggle" and auditioned her instead at WLS-AM for a group called the Prairie Ramblers. Blevins and the Ramblers became regulars on WLS's "National Barn Dance" program. The Prairie Ramblers also backed Blevins on most of her hits with ARC Records, Decca, and RCA Victor.