[6] Hirahara also stars in musicals such as Christine Daae in Love Never Dies (2014-2025), Carole King in Beautiful: The Carole King Musical (2017-2020), Mary Poppins in Mary Poppins (2018), Yuria in Fist of the North Star (2021-2022) and Satine in Moulin Rouge!

Also appearing in the anime Saiunkoku Monogatari was Hirahara's song, "Hajimari No Kaze" (also from Yottsu no L).

Her version of the song "Tsubasa o Kudasai" appeared in episode 5 of the drama Orthros no Inu sung under the stage name Ray.

"Sailing My Life" (featuring label mate Norimasa Fujisawa), from the album "my Classics 2", is the official OST for the Japan release of the Disneynature film Oceans.

[7] Ayaka Hirahara recorded "The Name of Life" (いのちの名前, "Inochi no Namae") by Joe Hisaishi from the Studio Ghibli film Spirited Away.