Takashi Hamazaki

Lead singer and songwriter (esp. lyricist) for Japanese funk band Flying Kids (from their inception in 1988). Started a solo career when the band disbanded in 1998; since the band reformed in 2007, he's been balancing his solo career and various side projects with his Flying Kids duties. Note that his real name is also Takashi Hamazaki, just with a different kanji for "hama".