In 2004, Justin Timberlake unleashed this hard-hearted song about a cheating ex. This one is personal for JT, who co-wrote ‘Cry Me a River’ about his former girlfriend Britney Spears. Timberlakesings in a high register throughout the Grammy-winning song, with a pain in his tone that only a scorned lover could possess. “You told me you loved me / Why did you leave me, all alone,” he asks his ex, as she begs for forgiveness. However, getting back together is not an option, as he tells her to “cry [him] a river.”