Hollywood superstar George Clooney has surprised shoppers in Edinburgh as he used his star power to highlight the plight of homelessness ahead of Christmas. The 54-year-old visited one of Social Bite's outlets in the Scottish capital, where patrons can buy homeless people food and hot drinks.

The organisation has five shops across Glasgow, Edinburgh and Aberdeen, and plans to expand to Dundee. "The dream is that one day there will be a chain of Social Bites donating millions of pounds to many charities, and employing hundreds of people, 25% of whom will have been homeless," a statement on Social Bite's website read.

"We know that this dream will remain just a dream unless our food, service and value for money is the best in town. If you can keep buying your lunch from us, we promise to work incredibly hard to be the best sandwich shop in town and to make this dream a reality."

Clooney, a long-time human rights activist, is also expected to address a crowd of 2,000 at the Scottish Business Awards in the capital. The trips comes after the charity Shelter warned 100,000 children in the UK would be homeless this Christmas.

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