Don Airey is the keyboard player of Deep Purple. With the iconic British band, he succeeded in doing what would have been impossible for any other keyboard player, substituting the legendary founding member Jon Lord, accidentally one of his idols.

Sister deliver raw, heavy and energetic punk-metal and have made themselves a name by releasing critically acclaimed albums and by making numerous tours all over Europe, including touring with reputable hard rock and metal bands such as U.D.O, Skid Row, Wednesday 13 and Hardcore Superstar.