"Kokoro no Chikara" (心のチカラ, lit. "The Power of the Heart") is a song recorded by Japanese singer Shizuka Kudo, from her sixteenth studio album, Tsukikage. It was released by Pony Canyon as the album's second single on April 27, 2005. The song was featured as the theme song on the first installment of the Pretty Cureanimefilm series, Futari wa Pretty Cure Max Heart the Movie (2005),[1] for which she also voiced the character of the Queen of the Garden of Hope.[2] A separate edition of the single including an alternate version of the song, as well as another song from the movie performed by Mayumi Gojo, was released by Marvelous Entertainment on May 25, 2005.
The coupling song, "Urunda Heart" served as theme song to the CXvariety show, F2 Smile.[3]
"Kokoro no Chikara" was released two months following “Lotus (Umareshi Hana)”, Kudo's comeback single to Pony Canyon. It is a personal favorite of Kudo's; she regards the song as a blessing and lists the song's recording as a key moment in her rediscovery of her love for music. The song, described as an uplifting strings-heavy R&B-influenced midtempo track, was written by Takahiro Maeda and composed, arranged and produced by H-Wonder.[4] It was composed in the key of F major and Kudo's vocals span from G♯3 to C5. Lyrically, the song is about finding happiness from within. Kudo's vocal performance was praised for being powerful and effortless.[4]
