Mumford previously provided backing vocals to the 'Evermore' album version of the track
Mumford co-wrote the song that appears in the new TV show
Also appearing will be Olivia Colman, Omid Djalili and more
The show will mark the band's only UK performance this year
She performed live across two nights in Washington DC
Sex, drugs and Amazon Prime Video – meet your fave new telly rockers
The fictional band’s first single has been released, alongside a trailer for the Prime Video series they star in
The full four-day bill sports a wild 106 acts
His 'Rocket Hour' playlist on Apple Music 1 is available now
Mumford says he's got "a bunch" of new songs "that are kind of ready to go"