Forty years ago one of the world's best-loved rock 'n' roll bands, The Faces, formed from the ashes of The Small Faces and the Jeff Beck Group, featuring a charismatic, raspy-voiced frontman in Rod Stewart alongside Ron Wood, Ronnie Lane, Ian McLagan and Kenney Jones. They offered a welcome antidote to the more serious excesses of the early seventies, being as devoted to the mayhem as they were to the music. This is their story