"Crazy Train" is the first single from British heavy metal vocalist Ozzy Osbourne's debut solo album, Blizzard of Ozz, released in 1980. A live version of the song recorded in 1981 from the album Tribute was also released as a single in 1987 with an accompanying music video. The song was written by Osbourne, Randy Rhoads and Bob Daisley. The subject matter of the lyrics is the Cold War and the fear of annihilation that existed during this period.
The song is one of Osbourne's most well known and recognizable as a solo performer. It was rated 9th greatest guitar solo ever by over 25 million readers of Guitar World magazine. The song was also ranked 9th by VH1 on the list of the 40 Greatest Metal Songs and in 2009 it was named the 23rd greatest hard rock song of all time also by VH1, the highest placement by a solo artist on the list.