For her halftime performance at Super Bowl LVII, Rihanna had 39 working versions of a playlist. Ultimately she delivered a set that featured parts of 12 songs. Among them: "Wild Thoughts," "Pour It Up""All of the Lights," "Run This Town," "Umbrella" and "Diamonds." But before the show could begin, the crew on the field at State Farm Stadium in Glendale, Arizona, had to mobilize and convert the venue from a football field to a concert stage. The NFL has turned this into an annual exercise of efficiency, but it's still amazing to see it unfold.