The album On the Turn was produced by GGGarth, who previously worked with what American heavy metal band from Los Angeles, California, formed in 1991?
Rage Against the Machine
Title: On the Turn
Passage: On The Turn is the second and final studio album by Irish alternative rock outfit Kerbdog, released on Fontana Records in the UK on 31 March 1997.  It was produced by GGGarth who had previously worked with Rage Against the Machine.
Title: Rage Against the Machine
Passage: Rage Against the Machine is an American heavy metal band from Los Angeles, California.  Formed in 1991, the group consists of rapper and vocalist Zack de la Rocha, bassist and backing vocalist Tim Commerford, guitarist Tom Morello, and drummer Brad Wilk.  They draw inspiration from early heavy metal instrumentation, hip hop acts such as Afrika Bambaataa, Public Enemy, and the Beastie Boys, punk rock such as the Sex Pistols and Fugazi, and Dutch crossover band Urban Dance Squad.  Rage Against the Machine is well known for the members' revolutionary political views, which are expressed in many of the band's songs.  As of 2010, they had sold over 16 million records worldwide.
Title: The Iron Maidens
Passage: The Iron Maidens is an American heavy metal band from Los Angeles, California.  Formed in 2001 as an all-female tribute act to English heavy metal band Iron Maiden.  Considered the "World's Only Female Tribute to Iron Maiden," the band currently consists of vocalist Kirsten Rosenberg, bassist Wanda Ortiz, drummer Linda McDonald, guitarist Courtney Cox, and guitarist Nikki Stringfield,
Rage Against the Machine On the Turn