According to the book *The Tenor Voice* by John Potter, Harry Styles "possesses a bright and clear tenor voice with a remarkably wide range." Potter cites Styles' ability to sing comfortably in both the head and chest registers, his impressive vocal agility, and his expressive use of dynamics and phrasing as evidence of his vocal talent.
Styles' vocal style has been compared to that of other great tenors, such as Luciano Pavarotti, Andrea Bocelli, and Michael Bublé. However, he has also developed his own unique style, which is characterized by a youthful exuberance and a pop sensibility.
In conclusion, Harry Styles is a talented tenor singer with a bright and clear voice, an impressive range, and a unique style.