Over the course of just five years, they pioneered sampling with two albums (as the Justified Ancients of Mu Mu), released seminal rave and ambient house albums as the KLF, launched a spinoff girl-band called Disco 2000, scored an international hit as the Timelords, wrote a book, made a crop circle, issued various stand-alone singles, compiled two compilation albums, shot a film (and composed its soundtrack) and recorded an unreleased thrash-metal album.