Roots of Stryper

Boston is an American rock band formed in 1975 in Boston, Massachusetts, by chief songwriter and composer Tom Scholz. The band's core members included multi-instrumentalist Scholz and lead vocalist Brad Delp, who remained the only constant members from 1975 to 1990, and from 1994 until Delp's suicide in 2007. Other musicians and members of the band varied largely across the group's lineup history.

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.

Piece of Mind is the fourth studio album by English heavy metal band Iron Maiden. It was released on 16 May 1983 in the United Kingdom by EMI Records and in the United States by Capitol Records. It was the first album to feature drummer Nicko McBrain, who had recently left the band Trust.

"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.