Singer Beyonce said she sang along to a pre-recorded track at the inauguration of President Barack Obama, but delivered a stirring a cappella version of the U.S. national anthem at a Super Bowl news conference on Thursday.
The Baltimore Ravens will fly into New Orleans on Monday to join Super Bowl rivals the San Francisco 49ers as the week-long build-up to America's biggest and most celebrated game gets fully under way.
Portugal's run to the Euro 2012 semi-finals has rightly been accompanied by appreciation of the talents of winger Cristiano Ronaldo, whose goals, speed, technique and intuition have seen off the Netherlands and Czech Republic.
