Mother Superior were an American hard rock band based in Los Angeles, California. A power trio, they originally consisted of guitarist/vocalist Jim Wilson, bassist Marcus Blake and drummer Jason Mackenroth. In 2005, Mackenroth quit and was replaced by Matt Tecu. Mackenroth died on January 3, 2016, in Nevada from prostate cancer complications. They were described as "a much talked about yet underappreciated rock outfit who made waves throughout Southern California and beyond."
Mother Superior released eight studio albums. Wilson, Blake and Mackenroth also backed vocalist Henry Rollins for three studio albums as the final lineup of Rollins Band from 1997 to 2003. In addition to playing live with the Rollins Band and U2 producer Daniel Lanois, Mother Superior (as a group or its members individually) have done session work with Daniel Lanois, Tony Visconti, Alice Cooper, Meat Loaf, Emmylou Harris, Sparks, Anthrax, Wayne Kramer, Lemmy, George Clinton, Iggy Pop, Mike Patton, and Queens of the Stone Age.