British pop star Robbie Williams enthralled the crowd with his famous song 'Let me entertain you' and 'Angels'. Along with Williams, celebrated Russian soprano Aida Garifullina later joined him on stage.
The quadrennial month-long event will see 32 nations, divided into eight groups, competing in 64 games over 32 days and fighting it out for the coveted trophy.
The showpiece event will begin with hosts Russia crossing swords with Saudi Arabia in the Group A in the opening match.
Russia, who are tournament's lowest-placed team at the 70th spot in the FIFA's World Rankings, are heading into the showpiece event in full strength, but they are yet to win a friendly in 2018.
Saudi Arabia, on the other hand, are placed at the 67th position and are entering the tournament on the back of their World Cup preparations in an international friendly with Italy. Saudi Arabia went on to lose that match 0-1.
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