The BBC has confirmed the line-up for the celebrity version of a hit series. Celebrity Race Across The World has unveiled its complete line-up, with radio and TV presenter Roman Kemp joining former Strictly Come Dancing stars Tyler West and Molly Rainford. Following an announcement on The One Show, the four celebrity pairs have been revealed with Tyler and Molly, who recently celebrated their engagement, going head-to-head against Roman and his sister Harley Moon. They'll be battling it out against Derry Girls actor Dylan Llewellyn and his mum Jackie, alongside Anita Rani and her dad Bal. "I can finally say…