In a cramped rehearsal studio, a band start to play. Gentle guitar picking meets skittering drums and soft bass tones as a woman sings softly into a mic. Amid the warm glow of fairy lights, it all feels very safe and comfortable.

But then the illusion is shattered. A clanging riff kicks in and the vocalist goes from a demure croon to guttural howls, letting loose a growl that makes the world’s meanest bulldog look like a kitten. It’s a huge stylistic twist, and for millions of people around the world, it’s how they were introduced to Ukrainian metal sensation .

By 2017, the band were onto the third single from their second album, watching the world politely overlook them time and again. But within 24 hours of their live session of being uploaded to YouTube, it had gone viral. Dumbstruck viewers left comments on the video as they shared en masse, and so many professional vocal coaches made ‘reaction’ videos to vocalist Tatiana Shmayluk’s singing prowess you can watch compilations for hours.

Finally, Jinjer had gone international. It was just as well: by bassist Eugene Abdukhanov’s reckoning, it was the band’s last chance at making their second album – and Napalm debut – a success. “ had to work, no matter what,” he explains.

“We’d been working so hard to get recognised, touring constantly, and suddenly we were given this amazing opportunity to sign to Napalm. At that point we were just a small band playing for tiny crowds, and we were given this lif.