Powerhouse is a 1977 compilation album by Deep Purple, featuring previously unreleased live and studio tracks from the band's Mark II line-up at the height of its powers. The album achieved Gold Certification in Japan. Track listing All songs written by Ritchie Blackmore, Ian Gillan, Roger Glover, Jon Lord and Ian Paice, except where indicated. Side one "Painted Horse" – 5:19 (outtake from the Who Do We Think We Are sessions in July 1972) "Hush" (Joe South) – 4:37 (live from the Concerto for Group and Orchestra program in September 1969) "Wring That Neck" (Blackmore, Lord, Paice, Nick Simper) – 12:51 (live from the Concerto for Group and Orchestra program in September 1969) Side two "Child in Time" – live – 12:29 (live from the Concerto for Group and Orchestra program in September 1969) "Black Night" – 4:59 (live single B-side from the Made in Japan dates in August 1972) "Cry Free" – 3:11 (outtake from the Deep Purple in Rock sessions in January 1970) Personnel Deep Purple Ian Gillan – vocals, harmonica Ritchie Blackmore – guitars Jon Lord – keyboards Roger Glover – bass Ian Paice – drums, percussion Charts Certifications References 1977 compilation albums Deep Purple compilation albums EMI Records compilation albums