Live Aid in the context of "Wembley Stadium (1923)"

U2 are an Irish rock band formed in Dublin in 1976. The group comprises Bono (lead vocals), the Edge (lead guitar, keyboards, and vocals), Adam Clayton (bass guitar), and Larry Mullen Jr. (drums and percussion). Initially rooted in post-punk, U2's musical style has evolved throughout their career, yet has maintained an anthemic quality built on Bono's expressive vocals and the Edge's chiming, effects-based guitar sounds. Bono's lyrics, often embellished with spiritual imagery, focus on personal and sociopolitical themes. Popular for their live performances, the group have staged several elaborate tours over their career.

The band was formed when the members were teenaged pupils of Mount Temple Comprehensive School and had limited musical proficiency. Within four years, they signed with Island Records and released their debut album, Boy (1980). Works such as their first UK number-one album, War (1983), and singles "Sunday Bloody Sunday" and "Pride (In the Name of Love)" helped establish U2's reputation as a politically and socially conscious group. Their fourth album, The Unforgettable Fire (1984), was their first collaboration with producers Brian Eno and Daniel Lanois, whose influence resulted in a more abstract, ambient sound for the band. By the mid-1980s, U2 had become renowned globally for their live act, highlighted by their performance at Live Aid in 1985. Their fifth album, The Joshua Tree (1987), made them international stars and was their greatest critical and commercial success. One of the world's best-selling albums with 25 million copies sold, it yielded the group's only number-one singles in the US: "With or Without You" and "I Still Haven't Found What I'm Looking For".

Sir Peter Thomas Blake CBE RDI RA (born 25 June 1932) is an English pop artist. He co-created the sleeve design for the Beatles' 1967 album Sgt. Pepper's Lonely Hearts Club Band. His other works include the covers for two of The Who's albums, the cover of the Band Aid single "Do They Know It's Christmas?", and the Live Aid concert poster. Blake also designed the 2012 Brit Award statuette.

Blake is a prominent figure in the pop art movement. Central to his paintings is his interest in images from popular culture, which have infused his collages. In 2002 he was knighted at Buckingham Palace for his services to art.

George Michael (born Georgios Kyriacos Panayiotou; 25 June 1963 – 25 December 2016) was an English singer-songwriter and record producer. Regarded as a pop culture icon, he is one of the best-selling recording artists of all time. Michael was known as a creative force in songwriting, vocal performance, and visual presentation. He was inducted into the Rock and Roll Hall of Fame in 2023.

Born in East Finchley, Middlesex, Michael rose to fame after forming the pop duo Wham! with Andrew Ridgeley in 1981. He took part in Band Aid's UK number-one single "Do They Know It's Christmas?" in 1984 and performed at the following year's Live Aid concert. His debut studio album, Faith (1987), won the Grammy Award for Album of the Year and became one of the best-selling albums of all time, having sold over 25 million copies worldwide. Michael then went on to release a series of multimillion-selling albums, including Listen Without Prejudice Vol. 1 (1990), Older (1996), Ladies & Gentlemen: The Best of George Michael (1998), Songs from the Last Century (1999), Patience (2004), and Twenty Five (2006).

Tsunami Relief Cardiff was a charity music concert held at the Millennium Stadium in Cardiff on 22 January 2005, in aid of the victims of the 2004 Indian Ocean earthquake, which had occurred the month before. The benefit concert raised £1,248,963.

The concert was, at the time, the biggest charity concert in the United Kingdom since Live Aid over 20 years before, and more than 60,000 fans watched live, with many millions more from around the world viewing the seven-hour-long concert. The main tickets sold out in 3 days; when a further 1,000 tickets were issued, they sold in 20 minutes.