 While Aoi Teshima went to C&S music academy in Fukuoka, she began a music career as an amateur in 2003.In 2003 and 2004, she participated in a musical event "DIVA", which was held in Fukuoka, as part of a "Teen's Music Festival".In March 2005, she acted in "Japan-Korea slow music's world" in South Korea and her performance was favorably received among the audience.