"I hope you like it. It's a bit weird," says frontman Dan Smith before the band plays their new song
The band posted a two-minute teaser video on Facebook
Band say they've written 25 songs for their second album
Second album is also said to be coming 'soon'
Band made unannounced appearance on William's Green Stage
Band take to twitter to suggest a secret festival set on Friday June 26
Big acts lined up for charity's <em>Passport Back To The Bars</em> gigs
Plus new releases from Angels & Airwaves, Ghostface Killah, J Cole and Los Campesinos
The track is part of Bastille's forthcoming collaborative EP 'VS (Other People's Heartache Pt III)
Organiser also confirms alternative mixes of track will be made available