Her contract with KMBC was voided because she was a minor when she signed it. Once known as Mary Jo, the Yodeling Sweetheart, Bonnie Lou now earned the devotion of listeners which would last the rest of her career. She performed regularly with the sister duo she had listened to as a child, the Girls of the Golden West, one of whom was McCluskey's wife. During her years with WLW, Bonnie Lou often performed at country music hub Nashville, Tennessee on weekends, including several times at the Grand Ole Opry.