I Do Not Want What I Haven't Got became Sinéad O'Connor's popular breakthrough on the strength of the stunning Prince cover "Nothing Compares 2 U," which topped the pop charts for a month. But even it's remarkable intimacy wasn't adequate preparation for the harrowing confessionals that composed the majority of the album. Sinéad O'Connor ranked among the most distinctive and controversial pop music stars of the alternative era, the first and in many ways, the most influential of the numerous female performers whose music dominated airwaves throughout the last decade of the 20th century. Brash and outspoken - her shaved head, angry visage, and shapeless wardrobe a direct challenge to popular culture's long-prevailing notions of femininity and sexuality - O'Connor irrevocably altered the image of women in rock; railing against long-standing stereotypes simply by asserting herself not as a sex object, but as a serious artist, she kick-started a revolt which led the way for performers ranging from Liz Phair to Courtney Love to Alanis Morissette.