Three teenagers from Putney who went stellar with their award-winning debut, xx.
The former Radio X New Music Award winners will play the O2 Shepherd's Bush Empire on September 10 - the same day they release their second album Coexist.
The band - who are also playing Bestival in September - will also play gigs in Cardiff and Edinburgh before heading to Canada and the US for a string of shows.
The UK headlining dates are:
Sep 10 - O2 Shepherds Bush Empire, London
Sep 11 - The Coal Exchange, Cardiff
Sep 12 - Usher Hall, Edinburgh
Tickets go on sale this Friday morning (July 27) at 9am.