Diary of a Madman is the second solo studio album by British heavy metal vocalist Ozzy Osbourne. It was released on 7 November 1981, and re-issued on CD on 22 August 1995. An altered version appeared in 2002 with the original bass and drum parts removed and re-recorded. In 2011, a Deluxe 30th Anniversary Edition was released with all original parts restored. To date, the album has sold over 3.2 million copies worldwide.