Blessed with a great tenor voice, traditional bluegrass singer and guitarist Jimmy Martin mastered his craft as lead vocalist for Bill Monroe's Blue Grass Boys for much of 1949-1951 and again in 1952-1953. Martin's vocals and his dynamic guitar playing both complemented Monroe perfectly, and in the opinion of many, he was the finest lead singer and guitarist Bill ever had. In 1951, between stints with Monroe's band, Martin joined with the Osborne Brothers, forming the Sunny Mountain Boys. Though this association lasted only until 1955, Martin has used this band name up to the present. In keeping up such high standards over the years, Martin has hired numerous major-league musicians, including banjo players J.D. Crowe, Bill Emerson, Vic Jordan, Alan Munde, and mandolin player Paul Williams, all of whom subsequently made it big in bluegrass. Martin is required listening for anyone with more than a passing interest in bluegrass.