His name is Will Oldham. You might know him better, though, as Bonnie "Prince" Billy or Palace or as half of the folk rock group Superwolves. His work has spanned three decades now and earlier this year he released his twenty-first Bonnie "Prince" Billy album. It's called Keeping Secrets Will Destroy You. When we asked Oldham about the song that changed his life, he picked a spare, interior, haunting song. One that, we'll admit, we hadn't heard before - "Horses" by Sally Timms.