Extrovert is a russian progressive rock/progressive metal band from Irkutsk. It was founded in 1993 as a hard n heavy band Big Trouble. In 1996 they started a close collaboration with Irkutsk State Musical Theater. The famous Russian rock-opera 'Juno and Avos' by Alexey Rybnikov and 'Jesus Christ SuperStar' by Andrew Lloyd Webber were staged featuring the musicians of Big Trouble. In 1999 'Four Elements' — a long awaited album in English - was released in Irkutsk.