In 2001 and 2002, Brown made several guest appearances at live Hawkwind concerts, subsequently touring with them as a guest vocalist. On their December 2002 tour, Hawkwind played several songs by Brown from the Kingdom Come era, along with "Song of the Gremlin", which Brown had sung on Captain Lockheed and the Starfighters; this was documented on the Hawkwind DVD Out of the Shadows.
In 2001 and 2002 Brown made several guest appearances at live Hawkwind concerts subsequently touring with them as a guest vocalist On their December 2002 tour Hawkwind played several songs by Brown from the Kingdom Come era along with "Song of the Gremlin" which Brown had sung on Captain Lockheed and the Starfighters; this was documented on the Hawkwind DVD Out of the Shadows