When Geldof was six or seven, his mother, Evelyn, 41, died of a cerebral haemorrhage.
Geldof attended Blackrock College, where he was bullied for being a poor rugby player and for his middle name, Zenon.
Geldof's first major charity involvement took place in September 1981, when he performed as a solo artist for Amnesty International's benefit show The Secret Policeman's Other Ball, at the invitation of Amnesty show producer Martin Lewis; he performed a solo version of "I Don't Like Mondays".
Other rock artists had 'planted a seed' and appeared to have affected Geldof in a similar manner.
He rose to prominence as the lead singer of the Irish rock band The Boomtown Rats in the late 1970s and early 1980s, alongside the punk rock movement.
In July 2006, Geldof arrived at Milan's Arena Civica, a venue capable of holding 12,000 people, to play a scheduled concert to find that the organisers had not put the tickets on general sale and that only 45 people had shown up.
Geldof refused to go on stage once he found out how small the attendance was.
New versions of Do They Know It's Christmas were recorded in 19.
In November 2014, Geldof announced that he would be forming a further incarnation of Band Aid, to be known as Band Aid 30, to record an updated version of the charity single, with the proceeds going to treat victims of the Ebola virus in West Africa.
The band had Number One hits with his compositions "Rat Trap" and "I Don't Like Mondays".