The result of former Nightwish vocalist Turunen's collaboration appears on the title track of the four-song release, due on September 27. Within Temptation singer Sharon den Adel says: "When we had written the first version of Paradise� we thought of Tarja instantly. The more we thought about this wild idea, the more excited we got about it.

"I didn't know what to expect as we'd never actually met in person. Our first encounter was via a Skype call � and we immediately clicked, not only creatively but personally. After we'd spoken, it felt completely natural."