Nightwish is a symphonic metal band from Kitee, Finland. The band was formed in 1996 by lead songwriter and keyboardist Tuomas Holopainen, guitarist Emppu Vuorinen, and former lead singer Tarja Turunen. The band soon picked up drummer Jukka Nevalainen, and then bassist Sami Vanska after the release of their debut album, Angels Fall First (1997). In 2001, Vanska was replaced by Marco Hietala, who also took over the male vocalist role previously filled by Holopainen or guest singers.

Earlier Nightwish performs symphonic metal with soaring female operatic vocals. Their music has been described as "bombastic heavy, symphonic and cinematic, with keyboards and strings creating a gothic atmosphere". They have also been known to play power metal and gothic metal.  The band's music is also known to be complex and layered. Their approach is epic, theatrical and operatic. Critic Chad Bowar notes that the music is "always very melodic with memorable choruses and a lot of hooks."  The usage of a female vocalist has become a sort of trademark, though less so since the outbreak of new female fronted metal bands in the mid-2000s with the popularization of bands such as Evanescence and Leaves' Eyes as well as several gothic metal bands mixing female and male vocals, such as Lacuna Coil, Tristania, Epica and the early Within Temptation.  Bassist and vocalist Marco Hietala describes the style of the band's music as "melodic symphonic metal;" though this is not a view shared by all members of the group, including band composer Tuomas Holopainen, who describes the band as simply symphonic metal. Some critics find that the band had a gothic sound since their debut. The music of Nightwish had been "distinguished by the operatic voice" of soprano Tarja Turunen, a "charismatic frontwoman with a powerful voice". Critics observed that her vocals became less operatic with the release of Once. Following the departure of Tarja Turunen from the group, Nightwish left behind the "signature operatic vocals" of their earlier albums.  While the music of Nightwish is centered around a female lead singer, the band has also featured some male vocals on their albums ever since their debut release Angels Fall First. This debut album also included "elements of folk music and ambience" that were discarded on their subsequent album Oceanborn. However, the song "Creek Mary's Blood" from the album "Once" featured some use of folk-oriented Native American melodies, and their 2007 release Dark Passion Play featured folk music elements on the songs "The Islander" and "Last of the Wilds".

What is their new style like?
their 2007 release Dark Passion Play featured folk music elements on the songs "The Islander" and "Last of the Wilds".