The indie band, known for their 2007 track 'Keep The Car Running', will headline the event that takes place from July 9 to July 11.
Already confirmed for the festival are Eminem, Muse, Black Eyed Peas, Kasabian, Jay-Z, The Prodigy, Florence and the Machine and Paolo Nutini among others.
Arcade Fire are expected to release their eagerly-awaited third album this May.
> Arcade Fire reveal new LP release date
