Simply Red have also just been added to the star-studded line-up at Oxford's Blenheim Palace in June next year.
Snow Patrol and Duran Duran, also previously scheduled as 2020 headliners, will again feature on next year’s bill.
The original movie musical will be based on Richie’s career-spanning songbook.
Lionel Richie, Brittany Howard, Lenny Kravitz, Black Pumas and many others were scheduled to perform at this year's event.
Other artists taking part include Vince Gill, Lady Antebellum, Jennifer Nettles, Rascal Flatts and Michael McDonald.
His 'Islands In The Stream' duet with Dolly Parton is at No. 2, as Rogers places 12 titles on the survey.
KISS, Iron Maiden and System Of A Down were due to headline Download, while the Isle Of Wight was set to host Lewis Capaldi, The Chemical Brothers and Lionel Richie.
A family representative said that Rogers "passed away peacefully at home from natural causes” at the age of 81.
Newly announced artists will join The Chemical Bros, Duran Duran, Lewis Capaldi, Lionel Richie and more for the 2020 festival.
The Scottish stars join Lionel Richie, who headlines on Saturday, 20 June, and David Gray, who celebrates the 20th anniversary of his seminal album 'White Ladder'.
The album, Bryan's seventh studio release, was produced by Jeff Stevens and Jody Stevens.
Sophisticated, uniformly smart and oozing with melody and charm these Southern boys wowed audiences from the outset when Motown chiefs opening for the legendary Jackson 5 in 1972 spotted them.
Last year, Florence + The Machine, Chvrches and Primal Scream were among the performers at the two-week event.
This year, the highly-feted event will present more than 1000 musicians in over 150 performances across its 3 days.
The full line-up of artists will perform over the course of two long weekends, first from 23 April to 26 April, and then from 30 April to 3 May.
The iconic UK festival will return once between 11 and 14 June, with the above acts topping the bill across the entire weekend.