{{Infobox album | name = Diary of a Madman | type = studio | artist = Ozzy Osbourne | cover = Ozzy Osbourne Diary of a Madman.jpg | alt = | released = 1981
Diary of a Madman is the second studio album by English heavy metal singer Ozzy Osbourne. It was released in October 1981, and re-issued on CD on 22 August 1995. This is the last Osbourne studio album to feature guitarist Randy Rhoads and drummer Lee Kerslake. 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 million copies worldwide.[2]
Diary of a Madman was supported by the Diary of a Madman Tour, which began on November 5, 1981, and ended August 8, 1982, spanning Europe, North America, and Asia. On March 19, 1982, during the North American leg of the tour, Rhoads died in a plane crash in Leesburg, Florida; after a two-week break, the tour continued with guitarist Bernie Tormé performing several shows in place of Rhoads before in turn being replaced by Brad Gillis.