"Nothing Compares 2 U" is a song written and composed by Prince for one of his side projects, The Family, for the eponymous album The Family.
The version, which O'Connor co-produced with Nellee Hooper, became a worldwide hit in 1990.
A music video was shot and received heavy rotation on MTV.
Its lyrics explore feelings of longing from the point of view of an abandoned lover.
The power ballad became a worldwide hit, topping charts in O'Connor's native Ireland, Australia, Austria, Canada, Germany, Mexico, Netherlands, New Zealand, Norway, Sweden, Switzerland, the United Kingdom, and the United States.