Roots of Tim "Ripper" Owens

Cage is an American heavy metal band from San Diego, California. Over their career, the band has released seven studio albums and played shows with Great White, Manowar, Metallica, and Judas Priest.

Pearl Jam is an American rock band formed in Seattle, Washington, in 1990. One of the key bands in the grunge movement of the early 1990s, Pearl Jam has outsold and outlasted many of its contemporaries and is considered one of the most influential bands from that decade.

John Michael "Ozzy" Osbourne was an English singer, songwriter, and media personality. Dubbed the "Prince of Darkness", he is widely credited as a pioneer of heavy metal music. He co-founded the band Black Sabbath in 1968, and rose to prominence in the 1970s as their lead vocalist. He performed on the band's first eight studio albums, including Black Sabbath, Paranoid and Master of Reality (1971), before he was fired in 1979 due to his problems with alcohol and other drugs.

Helloween is a German power metal band founded in 1984 in Hamburg by members of bands Iron Fist, Gentry, Second Hell and Powerfool. The band has at times been called one of the most influential European heavy metal bands of the 1980s. Its first lineup consisted of singer and guitarist Kai Hansen, bassist Markus Grosskopf, guitarist Michael Weikath and drummer Ingo Schwichtenberg. By the time Hansen left Helloween in 1989 to form Gamma Ray, the band had evolved into a five-piece, with Michael Kiske taking over as lead vocalist. Schwichtenberg and Kiske both parted ways with Helloween in 1993; Schwichtenberg died two years later as the result of suicide. Between then and 2016, there had been numerous line-up changes, leaving Grosskopf and Weikath as the only remaining original members. As a septet, their current lineup features all of the surviving members of the Keeper of the Seven Keys lineup, in addition to the remaining members from the Keeper of the Seven Keys: The Legacy-era.

"The Trooper" is a song by the English heavy metal band Iron Maiden, released as the second single on 20 June 1983 from the band's fourth studio album, Piece of Mind (1983). It was one of only a few Iron Maiden songs to achieve frequent radio airplay in the United States, peaking at No. 28 on the US Billboard Mainstream Rock.