Roots of Trans-Siberian Orchestra

Night Ranger is an American hard rock band from San Francisco, California. The band formed in 1982 and experienced a surge of popularity during the 1980s with the release of several successful albums and hit singles. Guitarist Brad Gillis and drummer Kelly Keagy have been the band's only constant members, though bassist Jack Blades performed on all but one of their albums. Other current members of the band include guitarist Keri Kelli and keyboardist Eric Levy.

Humble Pie are an English rock band formed by former Small Faces vocalist and guitarist Steve Marriott and former Herd vocalist and guitarist Peter Frampton in Moreton, Essex, in 1969. The original line-up was completed by former Spooky Tooth bassist Greg Ridley and former Apostolic Intervention drummer Jerry Shirley. They are known as one of the first supergroups of the late 1960s and enjoyed success in the early 1970s with songs such as "Black Coffee", "30 Days in the Hole", "I Don't Need No Doctor", "Hot 'n' Nasty" and "Natural Born Bugie". Frampton left the band in 1971 and was replaced by Clem Clempson.

AC/DC are an Australian rock band formed in Sydney in 1973. Their music has been variously described as hard rock, blues rock and heavy metal, although the band calls it simply "rock and roll". They are cited as a formative influence on the new wave of British heavy metal bands. The band was inducted into the Rock and Roll Hall of Fame in 2003 and have sold over 200 million records worldwide, making them one of the best-selling artists of all time.

The Four Tops are an American vocal group formed in Detroit, Michigan, in 1953 as the Four Aims. They were one of the most commercially successful American pop music groups of the 1960s and helped propel Motown Records to international fame. The group's repertoire has incorporated elements of soul, R&B, disco, adult contemporary, doo-wop, jazz, and show tunes. Lead singer Levi Stubbs, along with backing vocalists Abdul "Duke" Fakir, Renaldo "Obie" Benson and Lawrence Payton remained together in the group for more than four decades, performing until 1997 without a change in personnel. Along with fellow Motown groups the Miracles, the Marvelettes, Martha and the Vandellas, the Temptations, and the Supremes, the Four Tops helped to establish the "Motown sound"; pop-friendly soul and R&B with a clean, polished production quality. They were notable for having Stubbs, a baritone, as their lead singer, whereas most other male and mixed vocal groups of the time were fronted by tenors.