Are Feist and Verona both singers?
Feist (singer) Leslie Feist (born 13 February 1976), known professionally as Feist, is a Canadian indie pop singer-songwriter and guitarist, performing both as a solo artist and as a member of the indie rock group Broken Social Scene.
Tenores di Bitti The Tenores di Bitti are a traditional folk music group from Bitti, Sardinia who employ a polyphonic vocal style, often described as a type of overtone singing, whose oral tradition dates back to 3000 BC.