Mosby (b. 26 April 1933, Fort Smith, Arkansas, USA) moved to Los Angeles when a child and during the 50s built a reputation around the local country circuit, soon fronting his own band. He first met Jonie (b. Janice Irene Shields, 10 August 1940, Van Nuys, Los Angeles, California, USA) when she successfully auditioned for the post of vocalist with his band early in 1958, and that same year they married. They made their first recordings for a minor label in 1959 and had local chart success with ‘Just Before Dawn’. They were later signed to Columbia Records and achieved their first US country chart entry in 1963 with a Harlan Howard song called ‘Don’t Call Me From A Honky Tonk’. They left Columbia and joined Capitol Records in 1964, and by 1973 had 16 further hits to their credit. These included ‘Trouble In My Arms’, ‘Keep Those Cards And Letters Coming In’ and ‘Just Hold My Hand’. They also showed a penchant for recording, with minor success, country versions of songs that were pop hits, such as ‘Hold Me, Thrill Me, Kiss Me’ (Mel Carter), ‘I’m Leaving It Up To You’ (Dale And Grace) and ‘My Happiness’ (Connie Francis). Jonie and Johnny limited their touring in favour of raising their family, but appeared on various television shows and for several years had their ownCountry Music Time on Los Angeles television. They moved to Nashville in the 70s but achieved no chart hits after 1973.