Listen to Don't Break My Heart (Original Mix) [feat. Lady Z] online. Don't Break My Heart (Original Mix) [feat. Lady Z] is an Unknown language song and is sung by Qwestlife. Don't Break My Heart (Original Mix) [feat. Lady Z], from the album Shades of Disco, was released in the year 2015. The duration of the song is 5:23. Download Unknown songs online from JioSaavn.