Beyonce had the Super Bowl rocking as she took to the field with Bruno Mars and Coldplay, putting on a spectacular performance that had the 70,000-strong crowd on its feet.br Coldplay opened with Viva la Vida as hundreds of fans lucky enough to be brought onto the middle of the field danced along.br The rip-roaring halftime show came after a tense first half of Super Bowl 50, with Peyton Manning's Denver Broncos leading Cam Newton's Carolina Panthers 13-7.