Ozzfest is a venue in Guitar Hero World Tour, based on the alternative rock/metal festival created in 1996 by Ozzy Osbourne and his wife, Sharon. It is the sixteenth venue, located in an unspecified city in Germany. Ozzy Osbourne makes an appearance to sing Mr. Crowley and the encore Crazy Train. It's the 16th venue in the Guitar, Bass, and Band careers, the 14th venue in the Drum career, and the 4th venue in the Vocals career.