Using the pseudonym William Mysterious, Alastair Donaldson played saxophone and bass guitar with the Scottish punk band the Rezillos. Combining a sci-fi, day-glo aesthetic, references to Thunderbirds and The Flintstones, and a fast, fun take on 1960s beat music, the group burst on to the Edinburgh scene in January 1977 and later that year signed to Seymour Stein's Sire Records, the home of New York punk-pioneers the Ramones and Richard Hell. Credited as Mysterious on their exuberant debut Can't Stand the Rezillos, which made the Top 20 in August 1978, Donaldson left before the band appeared on Top of the Pops to promote their paean to the very same television show but returned to contribute to their swansong release, Mission Accomplished... But the Beat Goes On, recorded live at the Glasgow Apollo on 23 December 1978.