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

She and Jagger began dating in 1966 and became one of the most glamorous and notorious couples of 1960s “Swinging London.”

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.