"Robbie Williams just flipped off the camera on the most watched event in the world", tweeted one observer.
Either way, Robbie Williams has given the world another hit that we're all talking about, so we can at least take solace in that.
Nigera begin their conquest of Group D on Saturday against the 20th ranked Croatia.
Spanish World Cup victor Iker Casillas, alongside Russian supermodel Natalia Vodianova, brought the World Cup trophy onto the pitch in a sleek Louis Vuitton travel case, before Williams opened the song and dance numbers with the ever-reliable Let Me Entertain You.
"Thank you President Putin and thank you Moscow".
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Trump agreed to provide "security guarantees" to North Korea , and both countries agreed to renew relations and meet again. Hayden served as director of the National Security Council during the administration of President George W.
The performance will take place half an hour before Russian Federation face Saudi Arabia in the tournament's opening match at Moscow's Luzhniki stadium.
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Williams performed hits "Let Me Entertain You" and "Rock DJ" - but not his controversial "Party Like a Russian - while accompanied by dancers and freestylers".
Williams, who has previously performed at private parties organized by wealthy Russian business people, said he loved coming to Russia.
Following the opening ceremony, the national anthem of Saudi Arabia was sang on the field, followed by the national anthem of Russian Federation. "Football is truly loved here and it is called love at first sight, since our first official match here in 1897", Putin said.
Jennifer Lopez and Pitbull were headlines acts at the 2014 opening ceremony in Brazil. So in eight years, teams from around the globe will face off in matches played throughout the US, which will host 60 of them, and Canada and Mexico, which will host 10 matches apiece.