The KLF (also known as The Justified Ancients of Mu Mu, The Timelords, Kopyright Liberation Front and other names) were one of the seminal bands of the British acid house movement during the late 1980s and early 1990s, best known worldwide for their various stunts such as burning copies of their album "1987: What The Fuck is Going On?" on a bonfire in a Swedish field, firing machine gun blanks into the audience, writing a book on how to make a number one hit