"Tsukiyo no Shōzō" (月夜の肖像, "Portrait of the Moonlit Night") (also known by its French title "Identité de la Lune") is Japanese entertainer Chiaki Kuriyama's fifth single, released on November 23, 2011. It acted as the theme song to Himitsu Chōhōin Erika, Kuriyama's first starring drama. The two songs on the single were added to the deluxe edition of Circus, which was released on January 11, 2012. The single was produced by musician Ringo Sheena, who later covered the B-side "Seishun no Matataki" for her album Gyakuyunyū: Kōwankyoku in 2014.