Shirley Collins

Popular during Britain's Folk Revival of the 1960s, Shirley Collins is pretty much unknown outside of the United Kingdom. Her otherworldly voice soars like the fabled sirens when she's singing runic inflections over traditional British folk. Collins also dipped deep into Renaissance-inspired music and British Folk Rock. If you can imagine the ghost of the late, great Sandy Denny singing warmly to you when you're under your sheets on a cold night -- that's kind of what Shirley Collins sounds like.