Putin and Robbie Williams open World Cup 2018

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WATCH: Russia smashes Saudi Arabia in World Cup opener

Williams initially took centre stage ahead of the tournament opener between the host and Saudi Arabia by performing three of his greatest hits, one alongside Russian soprano Aida Garifullina.

Putin then addressed the crowd at the Luzhniki Stadium and the millions watching around the world, saying: "We are sincerely happy to host the World Cup in our country.

"Football is truly loved here. Russia is an open, hospitable and friendly country. Whatever traditions we hold, football brings us together in one single team and we are united by our affection for this spectacular and vibrant game.

"I wish all the teams success and an unforgettable experience to fans. Welcome to Russia."

FIFA president Gianni Infantino also spoke briefly, claiming: "For one month, football will conquer Russia and from Russia, football will conquer the world.

"Thank you President Putin and thank you Moscow."