Marianne Faithfull, the songstress who helped spur music's British invasion and was a muse to the Rolling Stones, died Thursday at 78.

Marianne Faithfull died Thursday in London at age 78. The singer, actress and "It" girl of 1960s London inspired — or wrote — numerous Rolling Stones songs.

Musician and actor Marianne Faithfull has died. She was 78. “It is with deep sadness that we announce the death of the singer, songwriter and actress Marianne Faithfull,” her spokesperson said in a statement on Thursday.