Guan Zhe (Chinese: 关喆; pinyin: Guān Zhé; born 23 April 1981), Also known as Grady Guan is a Chinese pop singer and songwriter. He was a contestant on The Voice of China, which featured Liu Huan, Na Ying, Yang Kun and Harlem Yu as judges. In January 2016, he has been selected to be a season 4 contestant on I Am a Singer.