Question: How many records have been sold by one of the writers of "Bachelor Boy"?

full_context: Document 1: Jimmy Savile: Sir James Wilson Vincent Savile, OBE, KCSG ( ; 31 October 1926 – 29 October 2011) was an English DJ, television and radio personality, dance hall manager, and charity fundraiser. He hosted the BBC television show "Jim'll Fix It", was the first and last presenter of the long-running BBC music chart show "Top of the Pops", and raised an estimated £40 million for charities. At the time of his death he was widely praised for his personal qualities and as a fund-raiser. After his death, hundreds of allegations of sexual abuse were made against him, leading the police to believe that Savile had been a predatory sex offender—possibly one of Britain's most prolific. There had been allegations during his lifetime, but they were dismissed and accusers ignored or disbelieved; Savile took legal action against some accusers.
Document 2: List of Top Pops number-one singles: "Top Pops" is a former British weekly pop music newspaper. It was founded as a monthly publication by Woodrow Wyatt in May 1967, becoming fortnightly in November 1967. On 25 May 1968, editor Colin Bostock-Smith began compiling a singles sales chart using a telephone sample of approximately twelve W H Smith & Son stores – the first single to reach number one on the "Top Pops" chart was "Young Girl" by Gary Puckett & The Union Gap. The charts and paper were published weekly with effect from 22 June 1968. On 20 September 1969 the paper was rebranded "Top Pops & Music Now", and subsequently became "Music Now" from 21 March 1970 – at this point the chart was sampling between 30 and 40 stores. From 27 February 1971 the chart was no longer published and in May 1971 the newspaper ceased publication. During the publication of the chart, 55 different singles reached number one. The only one to be knocked off number one and then regain the top spot was "Mony Mony" by Tommy James and the Shondells. The final chart-topper was "My Sweet Lord" by George Harrison.
Document 3: Elton John singles discography: The singles discography of British musician/singer-songwriter Elton John consists of 133 official singles and 17 as featured artist, as well as 47 other non-single guest appearances. Across his career, John has yielded 57 top 40 hits in the United States, only second to Elvis Presley in total, with 27 of those hitting the top ten and 9 achieving number-one. In his native United Kingdom, he has accumulated 69 top 40 singles, including 32 top tens and 7 number-ones. In 1997, John released the double A-side single "Something About the Way You Look Tonight"/"Candle in the Wind 1997" in dedication to the memory of Diana, Princess of Wales. It subsequently hit number-one in every country that it charted in and became the biggest selling single of all-time since the UK and US charts began in the 1950s, with sales of 33 million. John has sold 100 million singles worldwide.
Document 4: Block Buster!: "Block Buster!" (also sometimes listed as "Blockbuster!") is a 1973 single by Sweet. Written by Nicky Chinn and Mike Chapman, and produced by Phil Wainman, "Block Buster!" was the band's sole UK No. 1 hit. Released in January 1973, it spent five weeks at the top of the UK Singles Chart, and also made #1 in the Netherlands, Germany, Austria and Ireland, and #3 in Finland, Switzerland, Denmark and Norway. Outside Europe it peaked at #1 in New Zealand, #29 in Australia and at #73 on the American "Billboard" Hot 100.
Document 5: Rod Stewart: Sir Roderick David "Rod" Stewart, {'1': ", '2': ", '3': ", '4': "} (born 10 January 1945) is a British rock singer and songwriter. Born and raised in London, he is of Scottish and English ancestry. Stewart is one of the best-selling music artists of all time, having sold over 100 million records worldwide. He has had six consecutive number one albums in the UK and his tally of 62 UK hit singles includes 31 that reached the top ten, six of which gained the #1 position. Stewart has had 16 top ten singles in the US, with four reaching #1 on the "Billboard" Hot 100. He was knighted in the 2016 Birthday Honours for services to music and charity.
Document 6: List of best-selling singles: According to "Guinness World Records", "White Christmas" (1942) by Bing Crosby is the best-selling single worldwide, with estimated sales of over 50 million copies. The song recognized as "the best-selling single of all time" was released before the pop/rock singles-chart era and "was listed as the world's best-selling single in the first-ever "Guinness Book of Records" (published in 1955) and—remarkably—still retains the title more than 50 years later." "Guinness World Records" states that double A-side charity single "Candle in the Wind 1997"/"Something About the Way You Look Tonight" (1997) by Elton John, a tribute to the late Diana, Princess of Wales, is "the biggest-selling single since UK and US singles charts began in the 1950s, having accumulated worldwide sales of 33 million copies," making it the second-best-selling single of all time.
Document 7: Elton John: Sir Elton Hercules John, (born Reginald Kenneth Dwight; 25 March 1947), is an English singer, pianist, and composer. He has worked with lyricist Bernie Taupin as his songwriting partner since 1967; they have collaborated on more than 30 albums to date. In his five-decade career Elton John has sold more than 300million records, making him one of the best-selling music artists in the world. He has more than fifty Top 40 hits, including seven consecutive No. 1 US albums, 58 "Billboard" Top 40 singles, 27 Top 10, four No. 2 and nine No. 1. For 31 consecutive years (1970–2000) he had at least one song in the "Billboard" Hot 100. His tribute single, re-penned in dedication to the late Princess Diana, "Candle in the Wind 1997" sold over 33million copies worldwide and is the best-selling single in the history of the UK and US singles charts. He has also composed music, produced records, and has occasionally acted in films. John owned Watford Football Club from 1976 to 1987, and 1997 to 2002. He is an honorary Life President of the club, and in 2014 had a stand named after him at the club's home stadium.
Document 8: Bachelor Boy: "Bachelor Boy" (written by Bruce Welch and Cliff Richard) was a double 'A' side with "The Next Time" the first of three number one hit singles from the Cliff Richard musical, "Summer Holiday". It was followed at number one by The Shadows "Dance On!". The single spent three weeks at No. 1 in the UK Singles Chart in January 1963.
Document 9: Summer Holiday (album): Summer Holiday, is an album by Cliff Richard and The Shadows. It is the soundtrack to the film of the same name. The album topped the UK Albums Chart for 14 weeks. Three singles from the album were released, beginning with the double A-side single, "The Next Time" and "Bachelor Boy", followed by "Summer Holiday" and lastly "Foot Tapper" (by the Shadows). All three topped the UK Singles Chart.
Document 10: Cliff Richard: Sir Cliff Richard {'1': ", '2': ", '3': 'OBE', '4': "} (born Harry Rodger Webb, 14 October 1940) is a British pop singer, musician, performer, actor and philanthropist. Richard has sold more than 250 million records worldwide. He has total sales of over 21 million singles in the United Kingdom and is the third-top-selling artist in UK Singles Chart history, behind the Beatles and Elvis Presley.
Document 11: The Next Time: "The Next Time" backed with "Bachelor Boy" was the first of three number one hit singles from the Cliff Richard musical, "Summer Holiday". Both sides were marketed as songs with chart potential, and the release is viewed retrospectively as a double A-side single. However, technically double A sides were not regarded as such until 1965, so "The Next Time" was pressed as the A-side, with "Bachelor Boy" the B-side (written by Bruce Welch and Cliff Richard). The song was succeeded at number one by The Shadows' "Dance On!".
Document 12: Bing Crosby: Harry Lillis "Bing" Crosby Jr. ( ; May 3, 1903 – October 14, 1977) was an American singer and actor. Crosby's trademark warm bass-baritone voice made him the best-selling recording artist of the 20th century, having sold over one billion records, tapes, compact discs and digital downloads around the world.
Document 13: Cliff Richard discography: The discography of British singer Cliff Richard, who made his professional debut in 1958, consists of forty-five studio albums (43 English, 2 German), seven soundtrack albums, eleven live albums, three stage show cast albums, fifteen mainstream compilation albums, seven box sets, eight gospel compilation albums, forty-six EPs and 146 singles (in the UK, including singles only available via digital download). It also includes numerous budget/mid-price compilation albums, repackaged albums and one remix album. These figures are based on Richard's releases in his native UK plus a small number of new music releases for specific markets such as Germany, France, Japan and the US. There have been many additional compilation albums and singles released outside the UK that are too numerous to include; however, some of the more successful or notable singles released outside the UK have been included in the Singles section.
Document 14: Summer Holiday (song): "Summer Holiday" is a song recorded by Cliff Richard and The Shadows, written by rhythm guitarist Bruce Welch and drummer Brian Bennett. It is taken from the film of the same name, and was released as the second single from the film in February 1963. It went to number one in the UK Singles Chart for a total of three weeks, as had the first single from the film, "The Next Time". After "Summer Holiday" had spent two weeks at number one, The Shadows' instrumental "Foot Tapper" - also from the same film - took over the top spot for one week, before "Summer Holiday" returned to the top spot for one further week. The track is one of Richard's best known titles and it remains a staple of his live shows. It was one of six hits Richard performed at his spontaneous gig at the 1996 Wimbledon Championships when rain stopped the tennis.
Document 15: Summer Holiday (1963 film): Summer Holiday is a British CinemaScope and Technicolor musical film featuring singer Cliff Richard. The film was directed by Peter Yates (his debut), produced by Kenneth Harper. The original screenplay was written by Peter Myers and Ronald Cass (who also wrote most of the song numbers and lyrics). The cast includes Lauri Peters, Melvyn Hayes, Teddy Green, Jeremy Bulloch, Una Stubbs, Pamela Hart, Jacqueline Daryl, Lionel Murton, Madge Ryan, David Kossoff, Nicholas Phipps, Ron Moody and The Shadows. Herbert Ross choreographed the musical numbers.
ground_truth: more than 250 million