Roots of Trevor Horn

Biddu Appaiah, known mononymously as Biddu, is an Indian-British singer-songwriter, composer, and music producer who composed and produced many worldwide hit records during a career spanning five decades. Considered one of the pioneers of disco, Euro disco, and Indian pop, he has sold millions of records worldwide, and has received an Ivor Novello award for his work. He has been ranked at number 34 on NME's "The 50 Greatest Producers Ever" list.

Sarah Joyce, better known by her stage name, Rumer, is a Pakistani-British singer-songwriter. Supported by leading music industry figures including Burt Bacharach, Elton John, Carly Simon, and Jools Holland, Rumer was nominated for two Brit Awards on 13 January 2011.

Gun are a Scottish hard rock band formed by guitarist Giuliano Gizzi. The band's music has charted across Europe. In the UK, the band has had 4 UK top-20 albums and 8 UK top-40 singles, including a cover of Cameo's "Word Up" that reached the UK top 10. Gun has toured extensively, most notably with the Rolling Stones on their Steel Wheels/Urban Jungle Tour of 1989–1990.