Hunter's doctors have advised him to stop performing until his condition improves.
"To simply say Ian will be missed would be an understatement,” Ray Davies said.
The four albums are the band's 1969 self-titled debut set, the 1970 follow-up 'Mad Shadows' and their two studio sets of 1971, 'Wildlife' and 'Brain Capers.'
The octogenarian English rock frontman has been an inspiration for decades, not just for his songwriting but for the fact that he can still look the part as well as sing it.
The programme airs in full at 8pm ET on the evening of 27 April.
UK rockers Mott The Hoople are crossing the pond for the first time since their 1974 tour and are bringing their core line-up with them this spring.
'Mental Train' gathers all the band's studio albums from the period and adds a wealth of rare material.
'This Is For You' is the track Elliott recorded for the soundtrack of the documentary 'Beside Bowie: The Mick Ronson Story.'
Regularly cited as a classic piece of rock writing, the 1974 book will now feature a foreword by Johnny Depp.
This annual Kent-based bash is fast becoming a mandatory pilgrimage for discerning rock fans of all persuasions.
The solo album by Pete Overend Watts, the Mott The Hoople co-founder who died in January, will be released posthumously on 1 September 2017 by Angel Air.
Jessica Lee Morgan, the daughter of Mary Hopkin and Tony Visconti, will release her second studio album, Around The Block, on 16 June, 2017.
The early Island albums by Mott The Hoople, before their departure to CBS, are less celebrated, so today we're reDiscovering their 1969, self-titled debut.
Mott The Hoople's bass player, Pete Overend Watts, passed away on 22 January, 2017. He was 69 years old.
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.'