'So What' turned out to be Walsh’s last studio release before he joined the ranks of the Eagles to replace Bernie Leadon.
The world-famous singer-songwriter had already taken part in many vocal pairings on disc by the time the 'Duets' album arrived in 1993.
Fourteen years after Don Henley's famous quote, the group reunited and returned to the charts.
The best country duets in history have captured magic between dynamic pairings such as Patsy Cline and Jim Reeves, and Robert Plant and Alison Krauss.
'The End Of The Innocence,' one of the high points of Henley's solo career, went on to sell six million copies in America alone.
With the band riding the huge success of their sixth studio album 'Aja,' a new film soundtrack single emerged.
The film features tributes from Bonnie Raitt, Dolly Parton, Jackson Browne, Don Henley and many others.
The 1976 album 'You Can’t Argue With A Sick Mind' was a live celebration of Walsh's career to that point.
Crow's duets album on Big Machine later in 2019 will feature Keith Richards, Stevie Nicks, Don Henley and Joe Walsh among others.
The album went nine-times platinum in America alone, and topped the charts there for two weeks.
Frey was a six-time Grammy-winner as a member of the Eagles, and a solo artist of distinction.
Chris Stapleton, Leon Bridges and Norah Jones have already been confirmed for the event, which in 2019 honors country legend Dolly Parton.
Walsh's non-profit VetsAid raises money and disburses grants to veterans’ services organizations nationally and locally.
The Eagles have announced a series of 2018 US Tour dates spanning the summer with guests James Taylor and Chris Stapleton
The Eagles are partnering with US radio station SiriusXM to make their debut at the famous Grand Ole Opry Theatre in Nashville in October 2017