Article continues below advertisementJessica Simpson opens up about the pain of heartbreak in her new song "Fade." The 45-year-old singer dropped the emotional track on Tuesday, July 22, reflecting on the trials and tribulations of a relationship that has come to an end.Article continues below advertisementSource: @jessicasimpson/INSTAGRAMJessica Simpson shares her heartbreak in her new song 'Fade.'Article continues below advertisementSource: Jessica Simpson/YOUTUBEIn 'Fade,' Jessica Simpson reflects on the pain of broken promises from a past relationship.