 It is widely regarded as a classic club anthem and helped to define the genre that would become known as progressive house.During the 1990s Muir was involved mostly in writing and remixing club tracks both on his own, with John Digweed as Bedrock and other collaborators.His single 'Rok Star' under the name Marshall Stax charted in the UK and was used as the theme music for The Brit Awards for that year.