Mick Jagger: "That song was written during the Vietnam War and so it's very much about the awareness that war is always present; it was very present in life at that point. Mary Clayton who did the backing vocals, was a background singer who was known to one of the producers. Suddenly, we wanted someone to sing in the middle of the night. And she was around. She came with her curlers in, straight from bed, and had to sing this really odd lyric. For her it was a little odd - for anyone, in the middle of the night, to sing this one verse I would have been odd. She was great."
Mick Jagger: "That song was written during the Vietnam War and so it's very much about the awareness that war is always present; it was very present in life at that point. Mary Clayton who did the backing vocals, was a background singer who was known to one of the producers. Suddenly, we wanted someone to sing in the middle of the night. And she was around. She came with her curlers in, straight from bed, and had to sing this really odd lyric. For her it was a little odd - for anyone, in the middle of the night, to sing this one verse I would have been odd. She was great."