Shuhada' Sadaqat (born Sinead Marie Bernadette O'Connor; 8 December 1966 – c. 26 July 2023), known professionally as Sinéad O'Connor, was an Irish singer, songwriter and political activist. Her debut studio album, The Lion and the Cobra, was released in 1987 and charted internationally. Her 1990 album, I Do Not Want What I Haven't Got, was her biggest success, selling more than seven million copies worldwide.[14] Its lead single, "Nothing Compares 2 U", was named the year's top world single at the Billboard Music Awards.[15]

O'Connor had chart success with Am I Not Your Girl? (1992) and Universal Mother (1994), both certified gold in the UK,Faith and Courage (2000) certified gold in Australia, and Throw Down Your Arms (2005) went gold in Ireland. Her career included songs for films, collaborations with many other artists and appearances at charity fundraising concerts. O'Connor's 2021 memoir, Rememberings, was a bestseller.

O'Connor consistently brought attention to issues related to child abuse, human rights, racism, organised religion and women's rights. Throughout her music career, she spoke about her spiritual journey, activism and socio-political views as well as her trauma and mental health struggles. In a 1992 Saturday Night Live performance, she tore up a photograph of Pope John Paul II to protest abuse in the Catholic Church, triggering controversy

O'Connor changed her name to Magda Davitt in 2017. After converting to Islam in 2018, she changed it to Shuhada' Sadaqat,while continuing to perform and record under her birth name.