Snakes, spiders and scorching Kenyan sun: stars battle the desert for Comic Relief

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Snakes, spiders and scorching Kenyan sun: stars battle the desert for Comic Relief

The fearless trekkers - (from left) Dermot O'Leary, DJ Scott Mills, Lorraine Kelly, Ronni Ancona, Peter White, Craig David, Kara, Nadia Sawalha and X Factor's Olly Murs