Yucatan Peninsula – 1975: John Denver performing on the Calypso crew, appearing on the ABC tv special 'An Evening with John Denver'. (Photo by American Broadcasting Companies via Getty Images)
NASHVILLE, TN – Debbie and Carrie Moore join David Frizzell on stage during the All-Star Whitey Shafer Benefit, Hosted By Moe Bandy at The Nashville Palace on March 18, 2015 in Nashville, Tennessee. (Photo by Rick Diamond/Getty Images for Webster PR)
INDIO, CA – Singer Lynn Anderson performs onstage during day one of California's Stagecoach Country Music Festival held at the Empire Polo Club on April 25, 2009 in Indio, California. (Photo by Frazer Harrison/Getty Images)
Musician Olivia Newton-John performs on the "Hollywood Nights" TV special in March 1980 in Los Angeles, California. (Photo by Ron Eisenberg/Michael Ochs Archives/Getty Images)
AUSTIN, TEXAS = SiriusXM's Town Hall With Don Henley Hosted By Bob Seger At Austin City Limits Live At The Moody Theater In Austin, TX (Photo by Getty Images)
NASHVILLE, TN – Jean Shephard attends the 2011 Country Music Hall of Fame Medallion Ceremony induction at Country Music Hall of Fame and Museum on May 22, 2011 in Nashville, Tennessee. (Photo by Ed Rode/Getty Images)
