Mo Farah has told politicians and other sporting greats that something must be done to stop children suffering because of hunger.
Somalia-born Mo, 29, who has a step-daughter and is expecting twin girls with his wife in September, has set up a charity to help victims of the drought in the Horn of Africa, and has urged David Cameron to commit to helping children in dire need.
Arriving to cheers from crowds gathered outside, 10,000m Olympic Champion and 5,000m Olympic and world champion Mo joined world leaders and other sports stars including Pele at the 'hunger summit'.
Prime Minister David Cameron is looking to secure pledges to help prevent 25million children suffering stunted growth before the next Olympic Games in Rio in 2016.
Great Britain has already promised a whopping £120 million towards research into drought-resistant crops and text message alert systems in Kenya, and are urging multinational firms to play their part.
Long jump gold medalist Greg Rutherford, gymnast Louis Smith and judo medallist Gemma Gibbons also signed an open letter to Mr Cameron to 'fire the starting gun on the biggest ever push against hunger and malnutrition'.
How wonderful is Mo Farah? Such an inspiration - and how marvellous he can now rally Government and big business to campaign for such good causes.