The band, who released a promo for track Elan this month, are poised to release eighth album Endless Forms Most Beautiful - their first with Jansen at the helm, and with Troy Donockley as a full-time band member.

Hietala tells FaceCulture: "When we got together for the rehearsals, she was the first vocalist to come in on day one and start doing her stuff. It gave us a better view of the songs.

"You head the structures, the vocals, the lyrics and all that, and you can start going through them and what kind of punch they have, and have them play according to those dynamics.