, who performs under the mononym Misono (stylized as misono), is a Japanese singer-songwriter from Kyoto. She is also the younger sister of Japanese singer Kumi Koda. Misono was the lead singer of pop band Day After Tomorrow, until the group disbanded in 2005. In 2006, Misono made her debut as a solo artist, remaining under the Avex Trax label. Since her debut as a solo artist, she has released thirteen singles and two studio albums.