The Killers have been announced for the festival after announcing their sixth album Imploding The Mirage earlier this month.
Kings of Leon are yet to follow up their 2016 album WALLS.
NEW HEADLINER! @thekillers join #MadCool2020 pic.twitter.com/KVZWQsACQo
— Mad Cool Festival (@madcoolfestival) November 26, 2019
¡Y además! ¡ @KingsOfLeon también cabezas de cartel #MadCool2020 pic.twitter.com/13dMrF8GMF
— Mad Cool Festival (@madcoolfestival) November 26, 2019
The new headliners will play next year's festival alongside Taylor Swift, Billie Eilish, Pixies, alt-J, Tove Lo, Foals, Hinds, Sigrid, Diplo, Major Lazer, Haim, London Grammar, Marika Hackman, Pale Waves, and many more.