Shakespears Sister (originally Shakespeare's Sister) was a synth-pop-rock band formed by Irish-born former Bananarama singer/songwriter Siobhan Fahey initially on her own in 1988, the same year which she left Bananarama. Later in 1992 backing vocalist Marcella Detroit was featured more as London Records presented the band as a duo but the relationship was short-lived. The name is taken from the title of the song "Shakespeare's Sister" by The Smiths, which in turn refers to a section of Virginia Woolf's feminist essay A Room of One's Own, in which Woolf argues that if William Shakespeare had a sister of equal genius, as a woman she would not have had the opportunity to make use of it.

The band's name lost its final "e" when a friend making a woodcut logo for Fahey misspelt the most common modern spelling of Shakespeare. The cover of the first album, Sacred Heart, clearly includes an apostrophe (i.e. Shakespear's Sister ), but this too was subsequently lost through simple carelessness and apathy.

Shakespear’s Sister was a pop/rock duo consisting of former Bananarama member Siobhan Fahey and singer/songwriter/guitarist Marcella Detroit (real name Marcy Levy). Detroit had previously performed with Eric Clapton . They released two albums as a duo and are best-known for the song “Stay”, a top five hit in the U.S. which spent eight weeks at number one in the U.K. Both “Stay” and the follow-up single “Hello (Turn your radio on)” are co-written by Dave Stewart under the pseudonym