In 2009, Perry collaborated with Dubblestandart on their "Return from Planet Dub" double album, revisiting some of his material from the 1970s and 1980s, as well as collaborating on new material with Dubblestandart, some of which also included Ari Up of the Slits. In 2008, leading up to this release, Perry's first foray into the dubstep genre was released on 12" vinyl, a collaboration with Dubblestandart and New York City's Subatomic Sound System called "Iron Devil". That record was followed by several more reggae-oriented dubstep collaborations with Dubblestandart and Subatomic Sound System on digital and vinyl, first "Blackboard Jungle" volumes 1 and 2 (2009), featuring dancehall vocalist Jahdan Blakkamoore, then "Chrome Optimism" (2010), which also featured American filmmaker David Lynch. Following that, in 2010, Perry and Ari Up of the Slits collaborated on a limited-edition Subatomic Sound System 7" called "Hello, Hell Is Very Low", a rootical dubstep release that would turn out to be one of Ari Up's last recordings and the final release during her lifetime.