During the Cerebravore attack on the eve of the Day of the Dead in Green-Wood Cemetery, Maria and Blanca Gonzalez sang the song "Cielito Lindo" to overcome their fear. (COMIC: Revolutions of Terror)
...Canta y no llores,
Porque cantando se alegran...
cielito lindo, los corazones...
Cielito lindo, cielito lindo...
...que a m- me toca...
Behind the scenes[]
"Cielito Lindo" was a popular Mexican song. It was not named in the comic story. It was commonly played by mariachi bands, and such a band can be seen entertaining guests at the Day of the Dead celebrations.