 As part of the show, she became part of the in-show subgroup Kira Pika with Morning Musume's Koharu Kusumi and released their only single, "Hana o Pūn / Futari wa NS" on August 1, 2007.Hagiwara also released her character's version of the song "Koi no Mahō wa Habibi no Bi" for the soundtrack.She made televised and concert appearances portraying Hikaru in real life and appeared as a special guest during "Kirarin Revolution"'s final concert at Nakano Sun Plaza on May 4, 2009.