This week, Morgan and Oliver are joined by Ann Powers of NPR Music and author of the new book, Good Booty: Love and Sex, Black and White, Body and Soul in American Music. Together, the three dug into Like a Prayer, Madonna's critical breakout album form 1989. As Ann lays out, Madonna had already established herself as an MTV-era mega-star with her previous albums but Like a Prayer, with its then-controversial sexual politics and surprising personal candor, marked a new level of artistic ambition.