The NFL Super Bowl has become widely recognised as the world’s largest single annual sporting event with a global viewing audience of well over 200 million people. Its impact now transcends the spectacle of the sporting event beyond the gridiron itself, with its Half Time Show becoming a firm fixture in the wider entertainment and music calendars.

The January transfer window closed on Tuesday with Premier League clubs spending a record breaking £815m. The most notable contributor has been Chelsea who spent £288m (more than La Liga, Serie A, the Bundesliga and Ligue 1 combined).