It was quite amazing to see some of the stuff they pulled. For instance, bringing country music legend Tammy Wynette into the studio with a rapper to do a club dance song ("Justified & Ancient") seems absolutely bonkers but it worked. (see https://www.youtube.com/watch?v=H7_ajdd99CM )

I highly recommend reading Bill Drummond's 1988 book "The Manual (How to Have a Number One the Easy Way)." It seemed like brilliant satire (The KLF was releasing experimental trance music at the time) but he and Jimmy ended up at top of the charts on multiple occasions in the years that followed.