Mollie King of The Saturdays is the latest celebrity brought in to attempt the ludicrously difficult challenge that The Cube offers, in an attempt to win £250,000 for a charity of her choice. Back in 2012, Olympian Mo Farah was the first celebrity to win the jackpot - a feat that no one has managed since, despite Phillip Schofield's words of encouragement. The pressure's on, Mollie.