Known for his naturally smoky voice, often described as "ONLY ONE VOICE," TEE also has the unique background of being a former boxer. In 2010, after a scramble among various record companies, he signed a major contract with Universal Sigma and made his major debut in July of the same year with "3度のメシより君が好き" (I Love You More Than Three Meals a Day). On October 27th, he released his second single, "ベイビー・アイラブユー" (Baby I Love You), which became a smash hit. From the end of November 2013, SPICY CHOCOLATE's "ずっと feat. HAN-KUN & TEE" (Forever feat. HAN-KUN & TEE), in which TEE participated, was used as the NTT DoCoMo "Connecting Thoughts" CM song and recorded daily number one rankings on various distribution charts. On September 6, 2017, TEE released his first Japanese cover album, 『Masterpiece~The World Best Covers~』, featuring Japanese covers of famous Western songs with over 10 billion total views on YouTube.