Question: what is considered the hardest song to sing?
Answer: "Unchained Melody" - The Righteous Brothers. This song is full vocal trills, dramatic pitch changes and dynamics. ...  "My All" - Mariah Carey. ...  The Star Spangled Banner. ...  "Over the Rainbow" - Judy Garland. ...  "I Will Always Love You" - Whitney Houston. ...  "Chandelier" - Sia. ...  "Lovin' You" - Minnie Riperton. ...  "Wuthering Heights" - Kate Bush.