Marianne Faithfull, a singer and actress known for hits like "As Tears Go By," died Thursday, a spokesperson confirmed. She was 78. "It is with deep sadness that we announce the death of the singer, songwriter and actress Marianne Faithfull,

Marianne Faithfull, Grammy-nominated singer, actress, and one of the most prominent female voices of the British Invasion, died in London on Thursday. She was 78. The cause of death was not disclosed.

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