Information: - Polar Music is a Swedish record company founded in 1963 by Stig Anderson and his friend Bengt Bernhag. The first act that it signed was the Hootenanny Singers featuring Bjorn Ulvaeus. Polar eventually gained prosperity producing Ulvaeus' next group, international superstars ABBA. As a small Scandinavian company based in Sweden, Polar could not afford to set up operations worldwide and were only ABBA's record company in the Scandinavian countries. Therefore, ABBA's recordings were licensed to different record companies in each country, but usually to companies that had international operations, meaning they could effectively compete with each other to acquire the licenses in more countries if they proved successful in their own. The licenses gave the companies a few allowances to issue certain tracks as singles that Polar had not, or to modify single (and occasionally album) artwork. The licenses were for three years at a time, meaning that between 1989 and 1992, they had all expired. This enabled PolyGram to release "" to major success around the world. - Sweden, officially the Kingdom of Sweden (Swedish: ), is a Scandinavian country in Northern Europe. It borders Norway to the west and Finland to the east, and is connected to Denmark in the southwest by a bridge-tunnel across the Oresund. At , Sweden is the third-largest country in the European Union by area, with a total population of 10.0 million. Sweden consequently has a low population density of , with the highest concentration in the southern half of the country. Approximately 85% of the population lives in urban areas. - Stig Erik Leopold "Stikkan" Anderson (25 January 1931 12 September 1997) was born in Hova, Sweden, and was best known as the manager of the pop group ABBA. - '' Darlene '' is a song by English rock group Led Zeppelin . It was recorded at Polar Studios in Stockholm , Sweden during the In Through the Out Door sessions in November 1978 . Due to space constraints , the song was not included on In Through the Out Door . It was left unreleased until 1982 , when it was included on the album Coda . It was one of three songs recorded at Polar Studios which were omitted from In Through the Out Door and later released on Coda , the other two being '' Ozone Baby '' and '' Wearing and Tearing '' . John Paul Jones plays barrelhouse piano on this track . Jimmy Page performs 1950s rockabilly - style riffs throughout . This is the only song from the In Through the Out Door sessions which was credited to all four members of the band . It was never played live at Led Zeppelin concerts . - Bjorn Kristian Ulvaeus (born 25 April 1945; credited as Bjorn Ulvus) is a Swedish songwriter, producer, a former member of the Swedish musical group ABBA (19721982), and co-composer of the musicals "Chess", "Kristina fran Duvemala", and "Mamma Mia!". He co-produced the film "Mamma Mia!" with fellow ABBA member and close friend Benny Andersson. - Robert Anthony Plant, (born 20 August 1948) is an English musician, singer, and songwriter best known as the lead singer and lyricist of the rock band Led Zeppelin. A powerful and wide vocal range (particularly evident in his high-pitched vocals) has given him a successful solo career spanning over 30 years. Plant is regarded as one of the greatest singers in the history of rock and roll; he has influenced fellow rock singers such as Freddie Mercury, Axl Rose and Chris Cornell. In 2006, Heavy Metal magazine "Hit Parader" named Plant the "Greatest Metal Vocalist of All Time". In 2009, Plant was voted "the greatest voice in rock" in a poll conducted by "Planet Rock". In 2008, "Rolling Stone" editors ranked him number 15 on their list of the 100 best singers of all time. In 2011, "Rolling Stone" readers ranked Plant the greatest of all lead singers. - In Through the Out Door is the eighth studio album by the English rock band Led Zeppelin, and their final album of entirely new material. It was recorded over a three-week period in November and December 1978 at ABBA's Polar Studios in Stockholm, Sweden, and released by Swan Song Records on 15 August 1979. "In Through the Out Door" was the band's eighth and final studio release to reach the top of the charts in America, and was the last released by the band before the death of drummer John Bonham in 1980. - Goran Bror Benny Andersson (born 16 December 1946) is a Swedish musician, composer, member of the Swedish music group ABBA (19721982), and co-composer of the musicals "Chess", "Kristina fran Duvemala", and "Mamma Mia!". For the 2008 film version of "Mamma Mia!", he worked also as an executive producer. Since 2001, he is active with his own band Benny Anderssons orkester. - John Henry Bonham (31 May 1948 25 September 1980) was an English drummer, musician and songwriter, best known as the drummer of Led Zeppelin. Bonham was esteemed for his speed, power, fast bass-drumming, distinctive sound, and "feel" for the groove. He is considered by some publications to be one of the greatest drummers in rock. - Led Zeppelin were an English rock band formed in London in 1968. The group consisted of guitarist Jimmy Page, singer Robert Plant, bassist and keyboardist John Paul Jones, and drummer John Bonham. The band's heavy, guitar-driven sound, rooted in blues and psychedelia on their early albums, has earned them recognition as one of the progenitors of heavy metal, though their unique style drew from a wide variety of influences, including folk music. - ABBA (stylised ) are a Swedish pop group formed in Stockholm in 1972 by Agnetha Faltskog, Bjorn Ulvaeus, Benny Andersson, and Anni-Frid Lyngstad. They became one of the most commercially successful acts in the history of popular music, topping the charts worldwide from 1974 to 1982. ABBA won the Eurovision Song Contest 1974 at The Dome in Brighton, UK, giving Sweden its first triumph in the contest, and are the most successful group to ever take part in the competition. - Polar Studios was a recording studio in Stockholm, Sweden, which operated from 1978 through 2004. The studio was formed by ABBA musicians Bjorn Ulvaeus and Benny Andersson and the band's manager Stig Anderson, owner of the Polar Music recording label. - James Patrick "Jimmy" Page, (born 9 January 1944) is an English musician, songwriter, and record producer who achieved international success as the guitarist and founder of the rock band Led Zeppelin. - Swan Song Records was a record label launched by the English rock band Led Zeppelin on 10 May 1974. It was overseen by Led Zeppelin's manager Peter Grant and was a vehicle for the band to promote its own products as well as sign artists who found it difficult to win contracts with other major labels. The decision to launch the label came after Led Zeppelin's five-year contract with Atlantic Records expired at the end of 1973, although Atlantic ultimately distributed the label's product. What is the relationship between 'darlene ' and 'swan song records'?
Answer:
record label