A Diamond Jubilee is a celebration held to mark a 75th anniversary, but only the 60th anniversary in the case of a monarch (e.g. length of time a monarch has reigned). Traditionally, the diamond jubilee or anniversary of a person was also on the 75th anniversary. This changed with the diamond jubilee of the British Queen Victoria's reign. There was considerable national unrest when Queen Victoria largely withdrew from public life after her husband's death in 1861. It was decided to bring the diamond jubilee forward to the 60th anniversary in 1897. The diamond jubilee has been held on the 60th anniversary ever since.

The Diamond Jubilee of Queen Elizabeth II, to be celebrated in 2012, would be only the second in the country's history.

Robert Peter "Robbie" Williams (born 13 February 1974) is an English singer-songwriter, vocal coach and occasional actor. He is a member of the pop group Take That.

Williams rose to fame in the band's first run in the early- to mid-1990s. After many disagreements with the management and certain group members, Williams left the group in 1995 to launch his solo career. On 15 July 2010, it was announced he had rejoined Take That and that the group intended to release a new album in November 2010 which became the second fastest-selling album of all-time in UK chart history and the fastest-selling record of the century.

Williams has sold over 70 million records worldwide, which ranks him among the best-selling music artists worldwide. He is the best-selling British solo artist in the United Kingdom and the best selling non-Latino artist in Latin America. Six of his albums are among the top 100 biggest-selling albums in the United Kingdom. He has also been honoured with seventeen BRIT Awards—more than any other artist—and seven ECHO Awards. In 2004, he was inducted into the UK Music Hall of Fame after being voted as the "Greatest Artist of the 1990s."

Stevland Hardaway Morris (born May 13, 1950 as Stevland Hardaway Judkins), known by his stage name Stevie Wonder, is an American singer, songwriter, and multi-instrumentalist, a child prodigy who developed into one of the most creative musical figures of the late 20th century. Blind since shortly after birth, Wonder signed with Motown's Tamla label at the age of eleven, and continues to perform and record for Motown to this day.

Among Wonder's best known works are singles such as "Superstition", "Sir Duke", "I Wish" and "I Just Called to Say I Love You". Well known albums also include Talking Book, Innervisions and Songs in the Key of Life. He has recorded more than thirty U.S. top ten hits and received twenty-two Grammy Awards, the most ever awarded to a male solo artist. Wonder is also noted for his work as an activist for political causes, including his 1980 campaign to make Martin Luther King, Jr.'s birthday a holiday in the United States. In 2009, Wonder was named a United Nations Messenger of Peace. In 2008, Billboard magazine released a list of the Hot 100 All-Time Top Artists to celebrate the US singles chart's fiftieth anniversary, with Wonder at number five.

Gary Barlow (born 20 January 1971) is an English singer-songwriter, pianist and record producer. He is frontman and lead vocalist of pop group Take That and the head judge on the The X Factor. Barlow is one of Britain's most successful songwriters. He has had two Number 1 singles and a Number 1 album as a solo artist, and has had sixteen top 5 hits, eleven Number 1 singles and seven Number 1 albums with Take That. He is also a six-time recipient of the Ivor Novello Award and has sold over 45 million records worldwide with Take That.

In Barlow's autobiography, he relates that his love of music began at an early age.

"I was one of those kids that's forever dancing in front of the TV looking at my reflection."

He said he enjoyed watching Top of the Pops on television, and when he was ten years old, he watched an episode of the programme in which Depeche Mode were performing their new single "Just Can't Get Enough". Barlow was mesmerised by the sound and decided he wanted a keyboard for Christmas. For the next few years, he spent most of his spare time teaching himself to play his favourite songs.

Sir James Paul McCartney, MBE, Hon RAM, FRCM (born 18 June 1942) is an English musician, singer-songwriter and composer. Formerly of the Beatles (1960–1970) and Wings (1971–1981), he has been described by Guinness World Records as "The Most Successful Composer and Recording Artist of All Time", with 60 gold discs and sales of over 100 million albums and 100 million singles. With John Lennon, George Harrison, and Ringo Starr, he gained worldwide fame as a member of the Beatles, and with Lennon formed one of the most celebrated songwriting partnerships of the 20th century. After leaving the Beatles, he began a solo career and later formed the band Wings with his first wife, Linda Eastman, and singer-songwriter Denny Laine.

According to the BBC, his Beatles song "Yesterday" has been covered by over 2,200 artists—more than any other song. Wings' 1977 release, "Mull of Kintyre", became one of the best-selling singles ever in the UK, and he is "the most successful songwriter" in UK chart history, according to Guinness. As a songwriter or co-writer, he is included on thirty-one number one titles on the Billboard Hot 100, and as of 2012 he has sold over 15.5 million RIAA certified units in the United States.