Frontman says his 2015 album does not spell the end for Las Vegas band

Frontman is working with Ariel Rechtshaid on follow up to 2010's 'Flamingo'

Lily Allen, Rudimental and Katy B also performed at Chelmsford's Hylands Park

US band performed their take on hit single during headline slot

The Killers had some fun at Staffordshire’s V Festival and played a quick cover of Iggy Azalea’s “Fancy.” Drummer Ronnie Vannucci danced suggestively to the song while Brandon Flowers performed a stripped down version of the song of the summer contender on the piano. Watch fan-shot video below.