A groundbreaking biography reevaluating the life and legacy of transcendent musician Karen Carpenter. As one of the biggest-selling acts of the 1970s, the Carpenters are celebrated for their melodic pop and unforgettable hits like "Close to You," "Yesterday," and "Top of the World." Though Karen is rightly recognized as one of the greatest singers in popular music, the tragedy of her early death in 1983 at the young age of just thirty-two sometimes overshadows her incredible achievements. She has often been portrayed as a victim, controlled by her family and exploited by the music industry. Forty years after her death, this biography reframes her life and legacy as a pioneering woman with her own vision and agency. With exclusive interviews with friends, musicians, and collaborators, bestselling author Lucy O'Brien explores Karen's contributions as a singer, drummer, arranger, and producer, and traces the roots of the Carpenters' iconic sound. Lead Sister also honors Karen's triumphs in the face of her struggle with anorexia, providing contemporary perspectives on eating disorders and mental health.