Once there were the great Black Sabbath, who invented doom metal with Ozzy Osbourne and Tony Iommi and carried it to the world with worldwide hits. Then there was a long silence. And at some point, Ghost from Sweden appeared. They honor Ozzy's legacy – and add a few more ingredients: mummery on stage, a lot of comedy, and plenty of glam rock. The result: Ghost are incredibly entertaining, thick friends of Metallica. And they have become a case for the arenas – for example, the one in Oberhausen.