But guitarist Oscar Dronjak tells Spark TV they find it difficult to make time to pen songs while on the road. He says: "I find it hard. I always want to be removed from the live situation when I write songs, and it's very difficult when you know that in three weeks you're gonna go out on tour again.

"I don't think I would be able to do it if I was like I was when I was younger, but now I plan ahead much more. Now I have a family and everything I have to take care of, so I think about things like that."