Anette Ingegerd Olsson (born 21 June 1971), known by the stage name Anette Olzon, is a Swedish singer, best known as the former lead vocalist of Finnish symphonic metal band Nightwish from 2007 to 2012. She is also the vocalist of Swedish classic rock band Alyson Avenue, and of the Finnish heavy metal band The Dark Element.

Source: Wikipedia (https://en.wikipedia.org/wiki/Anette_Olzon)