at the respective numbers of #20, #19 and #10. "Truth", released under the name "Reira Starring Yuna Ito", was used as a theme song for Nana 2 in which Ito again portrayed Reira Serizawa. Ito started off 2007 with the release of her debut album Heart. Upon its release Heart topped the Oricon album chart. Heart was certified Double Platinum by the Recording Industry Association of Japan. In March, Ito released her seventh single, "I'm Here", which debuted at #15 on the Oricon chart. The single following "I'm Here" was "Mahaloha" (June), which was a collaboration with Micro from the band Def Tech. The single debuted at #5 on the chart. Along with Micro, Ito wrote the lyrics and composed the song. At the end of the year, Ito released her ninth single, "Urban Mermaid", which debuted at #10 on the charts. 2008—present: Rise to prominence Her tenth single, entitled "Anata ga Iru Kagiri: A World to Believe In", was released in on January 16, 2008. The song is a duet with Celine Dion. When Dion heard Ito's rendition of her song, she proposed the idea of a duet. Dion originally released this song on her latest English album Taking Chances. The song was used in an au LISMO commercial. "A World to Believe In" was nominated for "Best Collaboration Video", for the MTV Video Awards Japan '08, but lost to Kumi Koda's Last Angel. The singer's second album Wish was released on February 20 and debuted at number three on the charts. Since the release of Wish, the album has been certified gold by the RIAJ. Unite As One, a song on her album, was used as the ending theme song for Konami's Time Hollow. In March, Ito became spokesperson for Proactiv Japan. Ito was featured in the commercial along with her song, "Tokyo Days", as the theme. In June 2008, Ito collaborated with popular Japanese music producer Takeshi Kobayashi (who produced music for Mr. Children, a famous Japanese band) and Russian conductor Mikhail Pletnev, to sing "Gate", the theme song for the documentary movie with the same name, Gate. Her eleventh single entitled "Miss You" was released on September 3, 2008 and was used as the theme song for Ito En Vitamin Fruit. "Miss You" inspired the cellphone novel , which was written by sin. "Love Machine Gun" was also used as the main theme song for the