Marianne Faithfull, the British pop star, muse, libertine and old soul who inspired and helped write some of the Rolling Stones' greatest songs, died at 78 on Thursday in London.

Singer and actress Marianne Faithfull has died at the age of 78, her spokesperson said. She made her debut in the swinging 60s with the Mick Jagger/Keith Richards composition As Tears Go By, before later writing and recording her own songs,