Once is the fifth studio album by Finnish symphonic metal band Nightwish, released on 7 June 2004 by Spinefarm Records in Finland and Nuclear Blast in the rest of Europe. It is the fifth and last album to feature Tarja Turunen on lead vocals. The album cost nearly €250,000 to make, (1,000,000 including the videos) which made it Finland's most expensive recording ever until the release of Nightwish's next album, Dark Passion Play, which cost over €500,000 to produce. As of 2013, Once had sold 2.3 million copies worldwide, becoming Nightwish's most successful album to date. The remastering of the album was released on 6 August 2021. Background In a 2008 Kerrang! interview, Tuomas Holopainen remembered: "Doing this kind of really orchestral, symphonic stuff for four albums, you have to be prepared to take the next step and go 10 steps beyond, and that's how we ended up with the London Session Orchestra. At that time we also had the financial resources to do it. This was like our second breakthrough in a way; Oceanborn (1998) broke us, took us to the big league. Musically it was pretty laid-back from our side because everyone involved in the orchestra really knew their stuff, so we basically spent two days lying on the couch hearing all these people playing our songs, enjoying every moment. It was one of the most amazing experiences in my life. The first song they started to play was "Ghost Love Score", we had no idea what to expect, and I just thought: This can't be happening!" Musical style The album continues the more streamlined musical approach first heard on Century Child, moving further away from the power metal-influenced sound of their previous albums into symphonic metal with a slightly more mainstream, approachable feel. Once utilizes a full orchestra in nine of the eleven songs on the album; unlike Century Child, Nightwish chose an orchestra outside of Finland, the London Philharmonic Orchestra, which has been featured on every album released since. Once is their second album to feature a full-length song in Finnish, "Kuolema Tekee Taiteilijan". The band added new elements to their music for this album, such as the chorus riff and synthesized drum-beat of "Wish I Had an Angel", and a long prayer chant on "Creek Mary's Blood". The song "Ghost Love Score" was described by Hietala as follows: "I'm a big fan of old prog