Live 8 was a string of benefit concerts that took place on 2 July 2005, in the G8 states and in South Africa. They were timed to precede the G8 conference and summit held at the Gleneagles Hotel in Auchterarder, Scotland from 6–8 July 2005; they also coincided with the 20th anniversary of Live Aid. Run in support of the aims of the UK's Make Poverty History campaign and the Global Call for Action Against Poverty, ten simultaneous concerts were held on 2 July and one on 6 July. On 7 July, the G8 leaders pledged to double 2004 levels of aid to poor nations from US$25 billion to US$50 billion by the year 2010. Half of the money was to go to Africa.

More than 1,000 musicians performed at the concerts, which were broadcast on 182 television networks and 2,000 radio networks.

Live Aid and Band Aid organiser Bob Geldof announced the event on 31 May. Many former Live Aid acts offered their services to the cause. Prior to the official announcement of the event, many news sources (see e.g.) referred to the event as Live Aid 2. However, Geldof and co-organiser Midge Ure have since explicitly said they don't think of the event as the same as Live Aid. Geldof said "This is not Live Aid 2. These concerts are the start point for The Long Walk To Justice, the one way we can all make our voices heard in unison.". Many of the Live 8 backers were also involved in the largely forgotten NetAid concerts, including Executive Producer Jeff Pollack.

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George Roger Waters (born 6 September 1943) is an English musician, singer-songwriter and composer. He was a founder member of the progressive rock band Pink Floyd, serving as bassist and co-lead vocalist. Following the departure of bandmate Syd Barrett in 1968, Waters became the band's lyricist, principal songwriter and conceptual leader. The band subsequently achieved worldwide success in the 1970s with the concept albums The Dark Side of the Moon, Wish You Were Here, Animals and The Wall. Although Waters' primary instrument in Pink Floyd was the bass guitar, he also experimented with synthesisers and tape loops and played rhythm guitars in recordings and in concerts. Amid creative differences within the group, Waters left Pink Floyd in 1985 and began a legal battle with the remaining members over their future use of the group's name and material. The dispute was settled out of court in 1987, and nearly eighteen years passed before he performed with Pink Floyd again. It is estimated that as of 2010, the group have sold over 200 million albums worldwide, including 74.5 million units sold in the United States.

David Jon Gilmour,CBE (born 6 March 1946) is an English rock musician and multi-instrumentalist who is best known as the guitarist, one of the lead singers and main songwriters in the progressive rock band Pink Floyd. It is estimated that as of 2010, the group have sold over 250 million records worldwide, including 74.5 million units sold in the United States.

In addition to his work with Pink Floyd, Gilmour has worked as a producer for a variety of artists, and has enjoyed a successful career as a solo artist. Gilmour has been actively involved with many charities over the course of his career.

In 2003, he was appointed CBE for his charity work and was awarded with the Outstanding Contribution title at the 2008 Q Awards. In 2011, Rolling Stone Magazine ranked him number 14 in their list of the greatest guitarists of all time.

Gilmour was born in Cambridge, England. His father, Douglas Gilmour, was a senior lecturer in zoology at the University of Cambridge and his mother, Sylvia (née Wilson), was a teacher and film editor who raised her family at Grantchester Meadows, later immortalised by a Roger Waters song on Pink Floyd's Ummagumma. He has a younger brother who is also a musician.

Ann "Annie" Lennox, OBE (born 25 December 1954), is a Scottish singer-songwriter, political activist and philanthropist. After achieving minor success in the late 1970s as part of the New Wave band The Tourists, she and fellow musician David A. Stewart went on to achieve major international success in the 1980s as Eurythmics. Lennox is the most recognized female artist at the Brit Awards, winning a total of eight awards. She has also been named the "Brits Champion of Champions".

Lennox embarked on a solo career in the 1990s with her debut album, Diva (1992), which produced several hit singles including "Why" and "Walking on Broken Glass". To date, she has released five solo studio albums and a compilation album, The Annie Lennox Collection (2009). She is the recipient of eight Brit Awards, four Grammy Awards and an MTV Video Music Award. In 2002, Lennox received a Billboard Century Award; the highest accolade from Billboard Magazine. In 2004, she won both the Golden Globe and the Academy Award for Best Original Song for "Into the West", written for the soundtrack to the feature film The Lord of the Rings: The Return of the King.