"Beautiful You / Sennen Koi Uta" (千年恋歌 lit. One Thousand Year Love Song) is Tohoshinki's 22nd Japanese single, released on April 23, 2008 shortly before the completion of the T album Japan tour. "Sennen Koi Uta" was used as the opening theme for "The Legend (太王四神記)", a Korean drama that was later aired in Japan. Oricon News predicted that the consecutive releases of the previous single albums as well as the popularity of the historical drama series were expected to boost the sales of the latest single.