Problem: 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 else can you tell me about their musical style?

Answer with quotes: Critic Chad Bowar notes that the music is "always very melodic with memorable choruses and a lot of hooks.

Problem: Corey Todd Taylor (born December 8, 1973) is an American musician, singer, songwriter, actor, and author, best known as the lead singer and lyricist of the bands Slipknot and Stone Sour. Taylor formed Stone Sour in 1992, playing in the Des Moines area, and working on a demo. He joined Slipknot in 1997 to replace their original vocalist and has subsequently released five studio albums with them. After the first two Slipknot albums went Platinum, Taylor revived Stone Sour to record an album and tour in 2002.

Corey Todd Taylor was born on December 8, 1973 in Des Moines, Iowa. He was mostly raised by his single mother in Waterloo, Iowa, a place described by Taylor as a "hole in the ground with buildings around it". He is of Irish, German and Native American descent on his father's side, and Dutch and Irish on his mother's side. In 1979, Taylor and his mother saw the sci-fi series Buck Rogers in the 25th Century. Before the series, there was a trailer for the 1978 horror film Halloween. Taylor said this "developed some sense of Slipknot in [himself]". While Halloween introduced Taylor to masks and horror themes, Taylor's grandmother introduced him to rock music, showing him a collection of Elvis Presley records from the 1950s to 1970s. He especially found songs like "Teddy Bear", "In the Ghetto", and "Suspicious Minds" to appeal to his interests the most, describing them as "good times". Taylor also began listening to Black Sabbath at a young age, beginning with their early work. Taylor, along with his mother and sister, lived at one point in an "old dilapidated farmhouse" which on days in late autumn would "look like Black Sabbath album covers". By age 15, he had developed a drug addiction and had overdosed on cocaine twice. By this time, he was living in Waterloo, but later set out on his own and ended up at his grandmother's house in Des Moines. She took legal custody of him so that he could continue going to school, and she helped him buy musical equipment. When Taylor was 18, he left his grandmother's house and went to various places in Iowa, Des Moines being a place to which he frequently returned. In 2017, on an episode of Viceland's The Therapist, Taylor revealed that he was sexually assaulted at the age of 10 by a 16-year-old friend. Taylor stated that he never told anyone about the incident until he was "probably 18" because his abuser "threatened to hurt [him] and threatened to hurt [his] mom". At age 18, when Taylor was living with his grandmother, he attempted suicide by way of overdose. His ex-girlfriend's mother drove him to the hospital in Des Moines and doctors were able to resuscitate him. He describes this as the lowest point in his life. Taylor first met his father when he was 30 years old, and now has a relationship with him, although he said their paths do not cross that often.

Who took legal custody of him

Answer with quotes:
his grandmother's