Doctorin' the Tardis" is a 1988 electronic novelty pop single by The Timelords. The song is predominantly a mash-up of the Doctor Who theme music, Gary Glitter's "Rock and Roll (Part Two)" with sections from "Blockbuster!" by Sweet. The single was panned by critics but a commercial success, reaching number 1 in the UK Singles Chart and charting in the Top 10 in Australia and Norway.

http://en.wikipedia.org/wiki/Doctorin%27_the_Tardis