During her musical career, which encompassed several hit records and artist collaborations, o'connor drew attention to issues such as child abuse, human rights, racism, and women's rights. London (ap) — sinéad o'connor, the gifted irish singer-songwriter who became a superstar in her mid-20s and was known as much for her private struggles and provocative actions as for her fierce. Music video by sinéad o'connor performing all apologies.