Roots of Delain

Epica is a Dutch symphonic metal band founded by guitarist and vocalist Mark Jansen after his departure from After Forever. Originally formed as a symphonic metal band with gothic influences, Epica later incorporated strong death metal elements into their sound. Starting with their third album, progressive metal influences also became evident. Additionally, the band often incorporates thrash metal and groove metal riffs, black metal elements, power metal sections, and influences from Arabic music. Some songs also incorporate electronic elements, djent transitions, and folk metal melodies inspired by Middle Eastern, Chinese, and Celtic traditions.

Within Temptation is a Dutch symphonic metal band founded in April 1996 by vocalist Sharon den Adel and guitarist Robert Westerholt. They have also been classified under other genres, with critics praising the band's experimentation and musical versatility. By 2016, the band had sold more than 3.5 million albums worldwide.

Marko Tapani "Marco" Hietala is a Finnish heavy metal musician. Internationally, he is best known as the former bassist, male vocalist and secondary composer to Tuomas Holopainen, of the symphonic metal band Nightwish. He is also the vocalist and bassist as well as composer and lyricist for the heavy metal band Tarot.

Cryoshell is a Danish rock band from Copenhagen formed in 2006. The line-up consists of keyboardist Mikkel Maltha, guitarist Kasper Søderlund and lead vocalist Christine Lorentzen,.