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"Koi Ni Ochitara" (恋におちたら/If I Fall in Love) is Japanese singer Crystal Kay's seventeenth single
released on May 18, 2005, which was used as the theme song for the drama Koi ni Ochitara: Boku no Seikō no Himitsu. The single is currently the best-selling single of her career, selling 295,456 copies to date and Kay has stated that it changed the focus of her career away from R&B and towards J-Pop. In its first week it sold 73,717 copies, in its second week it dropped to number 4 and sold 51,546 copies, and in the third week it fell one place to number 5, selling a further 38,302 copies.
Music video[]
The music video for "Koi Ni Ochitara" features Crystal singing in a public center. As she does, the video cuts to her singing in a purple and pink background.
