In this week’s episode of Hunan Television’s “Singer 2018,” KZ Tandingan takes on a song she hasn’t heard of. “Real Gone” is a pop-rock single by American singer Sheryl Crow. Crow is a pop-rock artist with hit songs like “The First Cut Is The Deepest.” The song is Disney-Pixar’s “Cars” official soundtrack. Canceled last week, the show returned this …