Photos: Bono's buddy Bill Gates

At the World Economic Forum in January 2005, Gates and Bono shared the stage with political leaders prior to a session called "The G-8 and Africa: Rhetoric or action?" (From left: Former U.S. President Bill Clinton, Gates, South African President Thabo Mbeki, British Prime Minister Tony Blair, Bono and Nigerian President Olusegun Obasanjo.)