The moment the football world has been waiting for is finally upon us as the FIFA 2018 World Cup kicks off at Luzhniki Stadium in Moscow, according to RT. Before the opening game between hosts Russia and Saudi Arabia, the 80,000 fans in attendance at Luzhniki Stadium were treated to a lively music and dance performance by UK pop star Robbie Williams. The pop veteran kicked the opening ceremony off with a blast of 'Let Me Entertain You' - before going into a medley of his hits, including an 'Angels' duet with Russian opera star Aida Garifullina.