Mushroom Evolution Concert is a live album and video recorded by various Australian artists at celebratory performances held over two days of the Australia Day (January 26) weekend 1982. The Mushroom Evolution Concert was staged for Mushroom Records' tenth anniversary at the Myer Music Bowl and was organised by label boss, Michael Gudinski. It included a wide range of Australian performers from the label's roster. An estimated audience of 100,000 attended the concerts. In late 1972 Gudinski had been an artist manager and concert promoter when he and business partner, Ray Evans, founded Mushroom Records. The concert was recorded both for audio as a triple-LP and for video on double-VHS and released in 1982 under the same name. Subsequently, these were re-released on 2× CD (2005) and on 3× D