Of the three members of the Prodigy, only Howlett is present on the album musically. Actress Juliette Lewis, Oasis frontmen Liam and Noel Gallagher, Kool Keith of the Ultramagnetic MCs, who was previously featured in "Diesel Power" from "The Fat of the Land", American rapper Twista, Shahin Badar, American hip hop musician Princess Superstar and the Magnificent Ping Pong Bitches were guest musicians on the album. "This album is about reminding people what The Prodigy was always about—the beats and the music", Howlett wrote in a blog of a fansite after finishing the album. He also notes that his intention was to use vocals mostly as an extension of the sound rather than the main focal point, as was the case in "The Fat of the Land".