"Rust in Peace" received a Grammy nomination in 1991 for Best Metal Performance, and was the group's third platinum album, certified in December 1994. Early in 1990, Megadeth joined Slayer, Testament, and Suicidal Tendencies for the successful European Clash of the Titans tour, featuring several American thrash metal bands. An American leg began the following year featuring Megadeth, Slayer, and Anthrax, with Alice in Chains as a supporting act. The tour was considered a multi-headliner, as the three main bands alternated time slots. In addition to the Clash of the Titans tour, Megadeth (along with Testament) supported Judas Priest on their "Painkiller" tour in North America late in 1990 and appeared at the second Rock in Rio festival in January 1991. In July 1991 the song "Go to Hell" was featured in the film Bill & Ted's Bogus Journey and on its soundtrack. The recording sessions for Megadeth's fifth studio album began in January 1992 at Enterprise Studios in Burbank, California. Max Norman was chosen to produce, as the band was pleased with his mixing of "Rust in Peace". Megadeth spent nearly four months in the studio with Norman, writing and recording what became the band's most commercially successful album, "Countdown to Extinction". The album, whose title was suggested by Menza, features songwriting contributions from each band member. Ellefson explained that the band changed its approach to songwriting for this album, beginning to write more melodic songs. Released in July 1992, "Countdown to Extinction" entered the "Billboard" 200 chart at number two and was certified double platinum in the United States. The album's overseas success helped the band to develop a larger following outside the US. It received a nomination for Best Metal Performance at the 1993 Grammy Awards, and its title track won a Genesis Award from the Humane Society in 1993 for raising awareness for animal rights issues. Ellefson later said that he and Friedman were disappointed that Megadeth did not win the Grammy: "It was such a bizarre moment, because it was as if the amount of work it had taken to ramp up to that hopeful night was literally gone in a second." A world tour in support of the album was launched in late 1992, with Pantera and White Zombie as supporting acts. The tour included a North American leg in early 1993, with Stone Temple Pilots as the opening act. One month into the leg, the remaining shows, including dates in Japan, were canceled when Mustaine returned to substance abuse, ending up in a hospital emergency room.