I don't know if they would quite be ProgPower material but hey I guess you don't have to officially be metal to play the festival. I look at Arena as one of the greatest progressive rock bands of all time. They do have some rather heavy material too and I think would do well at a festival like ProgPower. They are absolute legends, as far as I know they don't play in America often and they have a new cd just released Pepper's Ghost.
Who would want to see Arena at ProgPower?
Who would want to see Arena at ProgPower?