What is the fine-grained topic of the following text: One Direction's Louis Tomlinson, pop star Olly Murs and comedians Jack Whitehall and John Bishop are among those signed up to play for England this year, with actor Michael Sheen, chef Gordon Ramsay and Westlife's Nicky Byrne among those set to line up for the Rest of the World. Only return the topic.
Celebrity participants in a football match.