Secret of My Heart is the first English-language studio album by Japanese recording artist Mai Kuraki, under the name Mai-K.

The song steadily climbed on the Oricon chart and peaked at number two, making it the fourth best-selling single of 2000 in Japan.

It was written by Kuraki herself, Aika Ohno and Cybersound (Michael Africk, Perry Geyer, Miguel Sa Pessoa).

The song was written by Kuraki herself, Aika Ohno and Cybersound (Michael Africk, Perry Geyer, Miguel Sa Pessoa).

The song was written by Kuraki herself, Aika Ohno and Cybersound (Michael Africk, Perry Geyer, Miguel Sa Pessoa).