Hietala states about “Left On Mars”: “A love song to my wife which ends up uniting two old friends. Even if the song itself sucked, I would be pleased about the result.”

Marko‘s guitarist and album producer Tuomas Wäinölä recalls hearing the song for the first time at Marko‘s place in Kuopio: “It was a strong one immediately. I think Marko had the idea of it being a duet too, straight from the beginning. After that it was just a matter of grinding and demoing it well. The fun part was taking the song to Switzerland on an USB drive, like proper agents. We had this secret meeting when we had a Pratteln outdoor gig with Tarja, both playing our own sets. And yeah, it was great to see them together on stage and finally singing the same tune again.”

Earlier this month, Hietala was asked by El Planeta Del Rock if there is any chance of him and Turunen launching a new project together. He responded: “I won’t close that option off. We haven’t talked about it, putting up a group together or anything like that. But at the moment, it seems that we’ve got a different kind of connection than it was in the past. Because then the camps were really divided already when I stepped into NIGHTWISH. And it was hard to find the truth of things, because a lot of it was like a managerial turf war where we got told certain things by one side and told certain things by the other side and lots of confusion — blah, blah, blah — and in the end, yeah, what we already realized a few years back when we were all together there doing the Christmas shows in Finland that after all the hassle has died and the noise has died and everything, you still find out that you lost a friend. And that was the main reason why we are basically doing this together again.”

In a recent interview with Thiago Rahal Mauro of Brazil’s Metal Musikast, Tarja spoke about what it was like to team up with Marko to perform a cover of “The Phantom Of The Opera” during their special open-air concert in July 2023 at Z7 Summer Nights in Pratteln, Switzerland. Tarja and Marko both played individual sets at the event, with their rendition of the main theme from Andrew Lloyd Webber‘s musical coming during Turunen‘s portion of the show.

“I got a call from a promoter to take part in one festival in Switzerland last year in a European summertime in July,” Tarja said. “And then I got to know, when I had accepted to be the artist of the evening, then I saw that they had also invited Marko and Marko‘s band to perform in the same festival. So I thought, ‘Hmm.’ And I was actually sending a message that I wished to reach Marko, because I didn’t have his contact any longer, to ask him to perform with me ‘The Phantom Of The Opera’ in my show. And he responded ‘yes.’ So, after 18 years (laughs), we were about to sing the song together. And it was super exciting. It was really beautiful. The people got very emotional about this.

“We had met already before — we had been singing on a few occasions in Finland a few years before — so we kind of cleaned the table on that occasion already,” she explained. “So we were in good terms, so to say, but now singing ‘The Phantom Of The Opera’ together after all these years was amazing. So we did it twice, actually — we did it in Switzerland and then in Finland. And now we are going to do it — that and a lot more (laughs) — there in Brazil during our upcoming joint tour.”

Tarja also elaborated on her friendship with Marko, saying: “It’s a new relationship with him, because he’s not the same person anymore than he was in the band. He has changed a lot, and many years have passed by. I’ve changed myself. Life has changed us. So it is a new relationship, let’s say. And it had made me very happy to get to know him better after all these years.”

Last November, Tarja admitted to Chaoszine that she was “nervous” before performing “The Phantom Of The Opera” with Marko at Z7 Summer Nights. “I believe that he was nervous as well to meet up with me, but we were both very excited to go back to the stage and to sing the song,” she said. “We sang ‘Phantom Of The Opera’ in Switzerland for the first time. Then we went over to Finland to perform it again, did a show together there — he with his band and me with my own. Wow. It was pure emotion. I think it was really beautiful, but it made me kind of… I was, like, ‘I’m in peace,’ sort of. The feeling was great. I think it was even more for Marko, because I saw him standing there after my concert, when I finished my set, and he came like almost in tears, saying that this was important. We reconnected, and it’s great. Now I’m really looking forward to have this tour with Marko in South America in March (2024), and I’m sure you will see something else happening also. Yeah, you’ll hear.”

Turunen was fired from NIGHTWISH at the end of the band’s 2005 tour by being presented with an open letter which was published on the NIGHTWISH web site at the same time. In the letter, the other members of NIGHTWISH wrote: “To you, unfortunately, business, money, and things that have nothing to do with emotions have become much more important.”

NIGHTWISH keyboardist and main songwriter Tuomas Holopainen later called the decision to part ways with Turunen “the most difficult thing I ever had to do.” For her part, Tarja said the way she was kicked out of the group proved that her former bandmates were not her friends. “Maybe one day I’ll forgive, but I will never forget,” she said.

In 2019, Turunen dismissed Internet chatter about her possible return to NIGHTWISH after her December 2017 onstage reunion with the band’s then-bassist/vocalist Hietala during a “Raskasta Joulua” concert in Hämeenlinna, Finland.

“I know a lot of fans would love to see something happen, but it’s a very long distance away,” she told Kerrang! magazine. “Personally, I don’t see anything happening with me and them, to be perfectly honest. Marko came a little later into the band; he wasn’t there since the beginning. He was always a guy I was close to. Me and Tuomas Holopainen, however, haven’t seen each other in a long time… but we have been in touch. It’s not bad. The past is what it is; we can’t change that. We can only change the future.”