British pop music is popular music, produced commercially in the United Kingdom.
 It emerged in the mid-to late 1950s as a softer alternative to rock 'n' roll and later to rock music.
 Like American pop music it has a focus on commercial recording, often orientated towards a youth market, as well as that of the Singles Chart usually through the medium of relatively short and simple love songs.
 While these basic elements of the genre have remained fairly constant, pop music has absorbed influences from most other forms of popular music, particularly borrowing from the development of rock music, and utilising key technological innovations to produce new variations on existing themes.
 From the British Invasion of the 1960s, led by The Beatles, British pop music has alternated between acts and genres with national appeal and those with international success that have had a considerable impact on the development of the wider genre and on popular music in general.
Signing Off is the debut album by British reggae band UB40, released in the UK on 29 August 1980 by Dudley-based independent label Graduate Records.
 It was an immediate success in their home country, reaching number 2 on the UK albums chart, and made UB40 one of the many popular reggae band in Britain, several years before the band found international fame.
 The politically-concerned lyrics struck a chord in a country with widespread public concerns about high unemployment, the policies of the recently elected Conservative party under Margaret Thatcher, and the rise of the racist National Front party, while the record's dub-influenced rhythms reflected the late 1970s influence in British pop music of West Indian music introduced by immigrants from the Caribbean after the Second World War, particularly reggae and ska – this was typified by the 2 Tone movement, at that point at the height of its success and led by fellow West Midlands act The Specials, with whom UB40 drew comparisons due to their multiracial band line-up and socialist views.
Siskin are a British pop music duo.
 The ensemble consists of Galen Ayers, daughter of musician Kevin Ayers, and Kirsty Newton.
 Galen Ayers lists her contributions as “vocals, guitars, lyrics, elegance” and credits her friend and fellow singer-songwriter Kirsty Newton with “keys, bass, vocals, lunacy”.
 They have been described as “beautiful, talented but unimpressed by the get-rich-quick blandishments of the mainstream”.
 They describe themselves as “two very different girls from very different backgrounds who were lucky to discover that they could make beautiful music together.”
Michael Donald "Mike" Chapman (born 13 April 1947) is an Australian record producer and songwriter who was a major force in the British pop music industry in the 1970s.
 He created a string of hit singles for artists including The Sweet, Suzi Quatro, Smokie, Mud and Racey with business partner Nicky Chinn, creating a formularised sound that became identified with the "Chinnichap" brand.
 He later produced breakthrough albums for Blondie and The Knack.
Lionel Bart (1 August 1930 – 3 April 1999) was a writer and composer of British pop music and musicals, best known for creating the book, music and lyrics for "Oliver!
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Ways of Hearing(ISBN  ) is a 2001 book about pop music by Ben Thompson.
 The book, which is subtitled "A user's guide to the pop psyche, from Elvis to Eminem", describes how Western pop music intersects with films, videos, television shows, and fiction.
 The book includes short essays on a number of performers, including alternative rocker Blixa Bargeld, contemporary composer John Cale, Captain Beefheart, The Chemical Brothers, hip-hop artists Missy Elliott and Eminem, Montreal avant-garde band Godspeed You Black Emperor!
, heavy metal singer-bassist Lemmy, Meatloaf (singer), Rolling Stones guitarist Cliff Richard, Pet Shop Boys and country rockers Wilco.
 The last section in the book describes different subgenres of pop, including metal, psychedelic, and political rock.
The Popjustice" £20 Music Prize, also known as the Popjustice" Twenty Quid Prize, is an annual prize awarded by music website Popjustice to recognise the best British pop single of the previous year.
 The prize was conceived by Popjustice founder Peter Robinson in 2003 as a reaction to what he perceived as the pompous and elitist nature of the existing Mercury Prize, which recognises the best album of the previous year, and in particular its exclusion of pop music acts in favour of those from more esoteric genres.
 The shortlist for the Popjustice prize is announced in September of each year and the winner named the following month, to coincide with the presentation of the Mercury Prize.
 Popjustice gives a token prize of £20 to the winner of its award, in contrast to the £20,000 given to the winner of the Mercury Prize.
Monsieur Adi is a French-American electronic artist, musician, composer, producer, and remixer.
 He first became noticed in 2010 for creating official remixes for British pop singer/songwriter Ellie Goulding and has since created official remixes for Beyoncé, Lana Del Rey, Katy Perry, Bastille, The Kooks and others.
 In 2012, he released his "Fire Fire Fire" "EP," which features the song "Last Stand" in collaboration with British pop singer/songwriter Gary Go.
 On 23 April 2013, Monsieur Adi announced on Facebook and Twitter that he was "writing and producing music with Seal," to which the British singer/songwriter later confirmed on Twitter.
Musical composition can refer to an original piece of music, either a song or an instrumental music piece, the structure of a musical piece, or the process of creating or writing a new song or piece of music.
 People who create new compositions are called composers in classical music.
 In popular music and traditional music, the creators of new songs are usually called songwriters; with songs, the person who writes new words for a song is the lyricist.
 "Composition" is the act or practice of creating a song or other piece of music.
 In many cultures, including Western classical music, the act of composing typically includes the creation of music notation, such as a sheet music "score", which is then performed by the composer or by other instrumental musicians or singers.
 In popular music and traditional music, songwriting may involve the creation of a basic outline of the song, called the lead sheet, which sets out the melody, lyrics and chord progression.
 In classical music, orchestration (choosing the instruments of a large music ensemble such as an orchestra which will play the different parts of music, such as the melody, accompaniment, countermelody, bassline and so on) is typically done by the composer, but in musical theatre and in pop music, songwriters may hire an arranger to do the orchestration.
 In some cases, a pop or traditional songwriter may not use written notation at all, and instead compose the song in her mind and then play, sing and/or record it from memory.
 In jazz and popular music, notable sound recordings by influential performers are given the weight that written or printed scores play in classical music.
"Do You Mind" is a 1960 hit song by English singer Anthony Newley, written by Lionel Bart.
 "Do You Mind" first charted on the UK Charts on 30 March 1960 where it went to #1.

Question: Do You Mind was written by a writer and composer of British pop music and musicals, and is best known for creating the book, music, and lyrics for what?
Answer: Oliver!