Michael Jackson

Michael Jackson was a singer. His song, "Man in the Mirror", was playing on the radio as David Gilligan watched a house that he intended to rob in Illinois on 24 December 1987. (PROSE: Be Good for Goodness's Sake)

Ace compared Mags' werewolf transformations to the one from the music video for his song Thriller. (AUDIO: An Alien Werewolf in London)

Rose Tyler once sarcastically called Lady Cassandra "Michael Jackson". (TV: The End of the World)

Information from invalid sources
A boy waiting to see Father Christmas once mistook the Master for Michael Jackson, shouting to his mother that "Michael Jackson pushed in!". (COMIC: Doctor Whoah! 337)

Other matters

 * During the height of Michael Jackson's popularity in the 1980s, American film studio Paramount Pictures expressed interest in producing a theatrical Doctor Who film that starred Jackson as the Doctor, riding the coattails of the success of Jackson's film ; these plans fell through sometime around 1988. Had this idea gone through, Jackson would've become the first non-white actor to portray the Doctor outside of parodies, as well as the first non-British one.
 * Rose sarcastically referring to Lady Cassandra with Jackson's name is supposedly a reference to the singers infamous drastic change of appearance due to continuous plastic surgery procedures.