It zipped along, cramming in Shakira, Madonna and Coldplay, but football fans may not be convinced of need for this mid-match spectacle Like hydration breaks and Donald Trump’s ability to get refereeing decisions overturned by simply phoning up the president of Fifa and complaining, the final half-time show is an innovation of the 2026 World Cup that comes with a degree of controversy attached. For one thing, its existence automatically means the World Cup final breaks the International Footbal…