David Kato for them to be killed in cold blood like he was." However, he stated, "I have no regrets about the story. We were just exposing people who were doing wrong." In Spring 2011, Boston's American Repertory Theater and System of a Down's Serj Tankian dedicated their production of "Prometheus Bound" to Kato and seven other activists, stating in program notes that "by singing the story of Prometheus, the God who defied the tyrant Zeus by giving the human race both fire and art, this production hopes to give a voice to those currently being silenced or endangered by modern-day oppressors".
Chained to the Rhythm that contains a midtempo beat. Perry co-wrote the track with Marley, Sia Furler, and its producers Max Martin and Ali Payami. It has a length of three minutes and fifty-seven seconds. The song contains "slap bass" with elements of electric guitar and synths. It features a guest appearance from Marley and background vocals from Furler. According to the sheet music published by Kobalt Music Publishing America, Inc on Musicnotes.com, "Chained to the Rhythm" is in A minor set in a time signature at a moderate tempo of 95 beats per minute. Perry's vocal range spans from the low note B