The untitled fourth studio album by the English rock band Led Zeppelin, commonly known as Led Zeppelin IV, was released on 8 November 1971 by Atlantic Records. Produced by guitarist Jimmy Page, it was recorded between December 1970 and March 1971 at several locations, most prominently the Victorian house Headley Grange. Led Zeppelin IV was a commercial and critical success, featuring many of the band's best-known songs, including "Black Dog", "Rock and Roll", "Going to California" and "Stairway to Heaven". The album is one of the best-selling albums of all time with more than 37 million copies sold. It is tied for third highest-certified album in the United States at 23x platinum. Writers and critics have regularly cited it on lists of the greatest albums of all time.

Live05 documents the band at its very best in wonderful European settings with enthusiastic audiences. Besides a stirring take of Jack Bruce's cinematic classic "Theme from an Imaginary Western," the two-disc set includes several of the songs from their seminal albums, including "Rope Ladder to the Moon," "Stormy Monday Blues," "Those Who Are About to Die," "Lost Angeles," and "The Valentyne Suite," which showcases Greenslade's amazing keyboard artistry. Together, the musicians in Colosseum create a powerful mix of rock, blues, and jazz-fusion that transcends all musical barriers.