Crazy Train was released in 1980 as Ozzy Osbourne's debut solo single from the album Blizzard of Ozz, following his departure from Black Sabbath. Co-written with guitarist Randy Rhoads and bassist Bob Daisley, it became one of Osbourne's signature songs and a staple of classic rock radio. Its opening laugh and riff have been sampled, covered and reused across sports arenas, films and online edits for decades. The clip keeps circulating because a few seconds instantly identify Ozzy and set a rebellious, high-energy tone.