After four years with Bill Monroe and the Bluegrass Boys, bluegrass singer and guitarist Jimmy Martin struck out on his own and soon became a legend in his own right. His string of late-1950s and early-'60s hits include "You Don't Know My Mind," "Hit Parade of Love," and "Rock Hearts." Martin's career experienced a major revival in the early '70s due to his prominent role on the Nitty Gritty Dirt Band's WILL THE CIRCLE BE UNBROKEN album.