The new members were revealed at a ceremony at the Country Music Hall of Fame and Museum in Nashville. Barbara is the only female country artist to win the CMA Entertainer of the Year award twice. She also starred in the NBC-TV variety series Barbara Mandrell & the Mandrell Sisters with her younger siblings Louise and Irlene. Roy, one of the most versatile performers in country history, co-hosted the popular TV series Hee Haw and won the 1973 CMA Entertainer of the Year honor.  Charlie, who was proficient on several instruments, played on sessions for Johnny Cash, Elvis Presley, Bob Dylan and many other stars. The new honorees will be celebrated at the annual Medallion Ceremony, which will be held in May at the Country Music Hall of Fame and Museum.