Prometheus the race of women and female kind: of her is the deadly race and tribe of women who live amongst mortal men to their great trouble, no helpmeets in hateful poverty, but only in wealth" (590–594). Prometheus is chained to a rock in the Caucasus for eternity, where his liver is eaten daily by an eagle, only to be regenerated by night, due to his immortality. The eagle is a symbol of Zeus himself. Years later, the Greek hero Heracles (Hercules) slays the eagle and frees Prometheus from his torment (520–528). Hesiod revisits the story of Prometheus and the theft
Chained to the Rhythm to the high note G, while the music follows the chord progression of Am–G/A–Dm–F. In the chorus, Perry sings "Turn it up, it's your favorite song / Dance, dance, dance to the distortion / Turn it up, keep it on repeat / Stumbling around like a wasted zombie / Yeah, we think we're free / Drink, this one is on me / We're all chained to the rhythm, to the rhythm, to the rhythm." Jason Newman from "Rolling Stone" wrote, "Perry injects a subversive element underneath the ostensibly frothy song, lacing her lyrics with ideas of selfish comfortability and complacency."