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 after she heard his track "Lions" and wanted to collaborate with him. After the two spoke in January 2017, he "delivered the message that I had to deliver" while recording the track, describing it as "one of unification and love". On February 8, 2017, in a promotional campaign for "Chained to the Rhythm," disco balls playing the song were left in various international cities. Capitol Records released the song for download two days later as the album's lead single and onto American radio stations on February 14. The song earned over three million streams within twenty-four hours of its Spotify