The New "Supergroup" Atoms for Peace. The group consists of Radiohead lead singer Thom Yorke (vocals, guitar and piano), Red Hot Chili Peppers bassist Flea (bass), longtime Radiohead producer Nigel Godrich (guitar, keyboards, synths), Joey Waronker of Beck & R.E.M. (drums) and instrumentalist Mauro Refosco (percussion). Their debut album, Amok, will be released on February 25 2013.
Source : Wikipedia