Frank Grillo had no idea who John Cena was before he was cast in "Peacemaker" Season 2, much to his son's dismay.

Along with possibly being the toughest new face in Peacemaker Season 2, Frank Grillo had the funniest scene off camera: admitting that he literally had no idea who John Cena was prior to working with

The second season of Peacemaker brought back its viral dance, but this time, creator and showrunner James Gunn chose a new track. Here's all you need to know about the new dance sequence and what clues are hidden inside for the rest of the show.