The Timelords, also known as The KLF, were a British electronic duo composed of Bill Drummond and Jimmy Cauty. They became prominent in the late 1980s with their innovative blend of house, techno, and hip-hop music. The duo's most notable work is the single "Doctorin' the Tardis," which reached number one on the UK Singles Chart in 1988. However, their significance extends beyond their commercial success, as they are often credited with pioneering the mashup genre, blending different music styles and samples into a cohesive work.