Turner says: "This new Sunstorm album is the best of the series. We went harder, stronger and heavier than ever before without losing the integrity of what the project is about. I call it melodic metal. The songs are very well crafted, the messages are profound, the performances amazing, and the sound is incredible."

The singer spoke out against his former Deep Purple bandmates last month, after the current lineup refused to perform with previous members including Ritchie Blackmore.