だれかの心臓になれたなら (Dareka no Shinzou ni Nareta Nara)

I Want To Be Your Heart is a song sung by Gumi Megpoid with Miku Hatsune doing the chorus. It is the one-hundred-and-eleventh track and the one-hundred-and-twelfth track in Other Vocaloid Songs 57: Making A Comeback Volume 5.