On her multiplatinum debut, Houston flitted across early-'80s urban styles, including post-disco boogie (the underrated "Thinking About You"), quiet storm ballads ("Hold Me," with Teddy Pendergrass) and Hi-NRG dance pop ("How Will I Know"). But it's the ballads, wherein she unleashed her incredible mezzo-soprano voice, that made her a megastar. "Saving All My Love for You" and "You Give Good Love" retain her soul origins, but "Greatest Love of All" is a bravura performance unencumbered by genre that points toward the household name she would become.