"FILE - In this May 1, 2013 file photo, Placido Domingo performs Siegmund's aria in ""The Valkyrie,"" during a pre-premiere performance, in St. Petersburg, Russia. The Spanish tenor has given a concert during nearly every single World Cup since 1990 and is gearing up for a July 11, 2014 presentation in Rio de Janeiro, just two days before the city hosts the final game. (AP Photo/Dmitry Lovetsky, File)"
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