You only have to look at Jade Goody's efforts last year to know that celebs and the London marathon don't always go hand-in-hand.
Well one celebrity guaranteed to fare a lot better is G4's Ben Thapa. The classical singer says the gruelling 26-mile run has always been a dream of his.
The star is well prepared with two marathons already under his belt and plenty of trips to the local gym.
He'll be joined in the capital by some other famous faces including Kara Tointon who plays Dawn on EastEnders, new mum Nell McAndrew and ex Big Brother star Michelle Bass.
Source:ITV