Coldplay refused to work with producer Brian Eno.
Brian Peter George St John le Baptiste de la Salle Eno , RDI ( [ ˈiːnoʊ ] born 15 May 1948 and originally christened Brian Peter George Eno ) is an English musician , composer , record producer , singer , writer , and visual artist . Coldplay . Their fourth studio album , Viva la Vida or Death and All His Friends ( 2008 ) , was produced by Brian Eno and released to largely positive reviews , earning several Grammy Award nominations and wins at the 51st Grammy Awards .