Nefarious was a single released in 1972 by Vince Cosmos. (PROSE: The B.O Bank Holiday Special!, Timothy Bold Interviews Vince Cosmos)

On 22 August, while being interviewed by Timothy Bold on Listen to the Stars!, Vince told the listeners that he had written it one sleepless night, and the song was about paranoia caused by mind-controlling aliens. (PROSE: Timothy Bold Interviews Vince Cosmos)

Shortly after on The Bryan Only Show aired on August bank holiday, Vince performed the song. (PROSE: The B.O Bank Holiday Special!)