Sinéad O’Connor (1966–2023) released her cover of ‘Nothing Compares 2 U’ in 1990, and it became so definitive — a global No. 1, her signature song — that it eclipsed the original completely. Her version is genuinely hers and genuinely great; the only error is chronological, the assumption that a 1990 No. 1 must be where the song began. It began in 1985, on an album track that sank.