An eleven-month tour began in South America in November 1994. In 1995, Megadeth played in Europe and North America with several opening acts, including Corrosion of Conformity, Korn and Fear Factory. The tour culminated with an appearance at the Monsters of Rock festival in Brazil, co-headlining with Alice Cooper and Ozzy Osbourne. In January 1995, Megadeth appeared on the soundtrack of the horror movie "Demon Knight" with the song "Diadems". In July, Megadeth released "Hidden Treasures", an extended play featuring songs which originally appeared on movie soundtracks and tribute albums.