"I Must Have That Man" is a song sung by Billie Holiday, originally written for the Broadway musical "Blackbirds of 1928." The song is about a woman who is deeply in love with a man who repeatedly cheats on her, but despite the pain he causes her, she cannot let him go. She compares her desire for him to the need for heat in an oven, and acknowledges that his behavior towards her is wrong, but she cannot resist him. Holiday's soulful voice brings to life the emotions of the lyrics, conveying the desperation of a woman who is caught in a hopeless cycle of love and betrayal. The song is a poignant reminder of the power and complexity of our emotions, particularly when it comes to matters of the heart. While the lyrics suggest a sense of resignation and accepting the pain that comes with loving someone who is not faithful, the passionate tone of the song also hints at the possibility of redemption and hope for a better future.