Yuna Ito (伊藤 由奈, Itō Yuna, born September 20, 1983) is an American-born former singer and actress who was active in Japan.She was born in Los Angeles and was raised in Hawaii. Ito made her musical debut in Japan with the single, "Endless Story", which was used as one of the theme songs for the popular 2005 film Nana; she also starred in the film, portraying Reira Serizawa. In 2006, Ito reprised her role as Reira for the sequel of the film singing the theme song, "Truth". In 2007, Ito released her debut album, Heart, which debuted atop the Oricon chart.