Sunday’s Super Bowl 50 had all the glitz and glam, the biggest celebrities in the world, and a halftime show that pandered heavily to Top 40 music lovers with Coldplay, Beyonce, Bruno Mars, and Mark Ronson. The night before, Metallica headlined a show of their own at AT&T Park, and judging by the words of frontman James Hetfield, getting the coveted halftime show on their home turf would have mattered to his band. https://www.youtube.com/watch?v=XbsRdDVNpZ8 “I knew there was a petition going around; everything happens for a reason,” he said, a couple songs into Metallica’s two-hour, 18-song set at the show [...]