1954- . Irish fundraiser and rock singer, leader of the group the Boomtown Rats 1975-86. In the mid-80s, Geldof instigated the charity Band Aid in partnership with fellow musician Midge Ure, which raised large sums of money for famine relief, primarily for Ethiopia. Gathering together the major pop celebrities of the day, they recorded Geldof's song, `Do They Know It's Christmas?' 1984, and followed it up with two simultaneous concerts 1985 under the name Live Aid, one in London and one in Philadelphia, which were broadcast live worldwide. In the 1980s he organized two simultaneous rock concerts, known as Live Aid and broadcast live worldwide, to raise money for famine relief, especially in Ethiopia.