Metronomy have been announced as the third and final headliner of Festival No.6, alongside Grace Jones and Belle & Sebastian.
Also joining the bill are Mark Ronson, who burst back onto the scene this year with his Bruno Mars collaboration 'Uptown Funk', as well as British Sea Power, Years & Years, and Haelos.
Speaking of Festival No.6, Metronomy's Joe Mount said, "After 18 months of touring Love Letters it felt like we needed to find the perfect setting for our final show, I believe we have found it! We can't wait to play at Festival No. 6."
Watch the video for 'The Upsetter' below
Festival director Luke Huxham, meanwhile, said, "Metronomy strike a great balance with Grace Jones and Belle & Sebastian, it’s the perfect blend of genres and musical textures and more importantly it’s going to make for a fantastic party vibe every single day of the festival."
Elsewhere amongst the acts already announced for the Welsh festival are Cafish & The Bottlemen, Everything Everything, James Bay, Kate Tempest, Ghostpoet, Young Fathers and Hookworms.
Festival No.6 takes place between 3-6 September in Portmeirion, Wales. See the full line-up below. For tickets and more information, click here.
BELLE & SEBASTIAN / GRACE JONES / METRONOMY / CATFISH & THE BOTTLEMEN / JAMES BAY / MARK RONSON (DJ SET) / YEARS & YEARS BADLY DRAWN BOY / BRITISH SEA POWER / EVERYTHING EVERYTHING / GAZ COOMBES / GHOSTPOET / KATE TEMPEST / KING CREOSOTE / RAE MORRIS / SOAK / STORNOWAY / YOUNG FATHERS FRYARS / GHOST CULTURE / HAELOS / HOOKWORMS / JANE WEAVER / LA PRIEST / SHURA SPRING KING / STEALING SHEEP / THE BOHICAS