Since the age of 16, AZU has been performing live at clubs. Her shows were mostly held around the Kansai and Toukai areas. Her name comes from the phrases "A~Z and handed down to you."
She made her first appearance on when she was selected by SEAMO to be featured on his second album, Live Goes On. The song, Kokoro no Koe ended up being used as the radio single to promote the album. She also appeared in the video for the song. It was well received and the album reached #1 on the Oricon charts. After this she went on to perform at eight venues on SEAMO's tour.
She is one of the artists featured in SEAMO's upcoming event, GOLDEN TIME. AZU was also featured on the Oricon 2007~spring~ Sound Blowin' concert.