Tarja Soile Susanna Turunen Cabuli (born August 17, 1977) is a Finnish singer-songwriter and composer. She is a full lyric soprano and has a vocal range of three octaves. Turunen studied singing at Sibelius Academy and Hochschule fur Musik Karlsruhe. She is well known as a professional classical singer but best known as the former lead vocalist of the Finnish symphonic metal band Nightwish, which she founded with Tuomas Holopainen and Erno Vuorinen in 1996. Their combination of hard and fast guitar riffs with Turunen's classical lead vocals quickly achieved critical and commercial popularity. Their symphonic metal style, soon dubbed "opera metal", inspired many other metal bands and singers.