Hikaru Utada (??? ???; Utada Hikaru?; born January 19; 1983); also known by her fans as Hikki (????; Hikki?); is a third culture singer-songwriter; arranger and record producer in Japan. She is well-known internationally for her two theme song contributions to Square Enixs Kingdom Hearts video game series.Utadas first official Japanese album First Love became the best-selling album of all time in Japan with over 7.65 million copies sold to date in Japan alone (10.056 million worldwide to date); cementing her status in the music industry in Japan.