Nightwish are a Finnish symphonic-metal band formed in 1996 and comprised of founder members, Tuomas Holopainen - keyboards and synthesizer and Emppu Vuorinen - guitars, plus long-term bass player/ guitarist, Marco Hietala, among others.
Their catalogue includes 1997 debut album, "Angels Fall First", plus: "Angels Fall First" (1997), "Oceanborn" (1998), "Wishmaster" (2000), "Century Child" (2002), "Once" (2004), "Dark Passion Play" (2007), "Imaginaerum" (2011) and 2015's: "Endless Forms Most Beautiful".