The film features tributes from Bonnie Raitt, Dolly Parton, Jackson Browne, Don Henley and many others.
A selection of the finest work by a true great of American music.
Frey was a six-time Grammy-winner as a member of the Eagles, and a solo artist of distinction.
Gregg was born on 8 December 1947 in Nashville, one year the junior of brother Duane, with whom he would co-found the mighty blues-rock institution the Allman Brothers Band.
Albums have been recorded in some very weird places, from outer space to underwater, prisons and even a scene of a murder. Here are some of the weirdest.
Gary Burden, the well-known cover artist designer famous for designing albums for Neil Young, The Doors and Joni Mitchell has died aged 84
Blues hero Buddy Guy has re-recorded his song 'Skin Deep' as the lead track from Listen To The Music, the fourth album by the Playing For Change charity.
The Velvet Underground's 50th anniversary is being celebrated with a special limited edition 6-disc vinyl box set released in February 2018
'Southern Blood', the final studio album from The Allman Brothers' late frontman Gregg Allman is set for release on 8 September 2017
Texan singer-songwriter Jimmy LaFave who made many widely-admired Americana albums, died on 21 May 2016 at the age of 61.
Lenny Kravitz will perform a tribute to Prince at the Rock Hall of Fame, along with other guests Alicia Keys, Pharrell and Dhani Harrison.
Yoko Ono, Ringo Starr, Keith Richards, Sting and Bruce Springsteen are among the major stars appearing in the video for the fundraising 'We Are Not Afraid.'
Grammy-winning bassist Rob Wasserman, who worked with Brian Wilson, Van Morrison, Elvis Costello and many others, has died at the age of 64.