Laughing Gas was a song performed by Quiet Riot at all the live performances while Randy Rhoads played with the band. It was never recorded onto an album until a live bootleg performance was enhanced (with rerecorded vocals) and placed on the The Randy Rhoads Years. The improvised solo was just over 6 minutes long and contained clips from future songs of Ozzy Osbourne including, Goodbye to Romance, Mr Crowley, Dee, and Crazy Train. The solo outlined Randy's talent and productivity level at such a young age. When Rhoads left the band, this song was never again performed.