Question: Who is the author of the biography named after the artist who changed the dynamics of singers back to mostly female?

full_context: Document 1: Madonna (entertainer): According to Tony Sclafani from MSNBC, "It's worth noting that before Madonna, most music mega-stars were guy rockers; after her, almost all would be female singers ... When The Beatles hit America, they changed the paradigm of performer from solo act to band. Madonna changed it back—with an emphasis on the female." Howard Kramer, curatorial director of the Rock and Roll Hall of Fame and Museum, asserted that "Madonna and the career she carved out for herself made possible virtually every other female pop singer to follow ... She certainly raised the standards of all of them ... She redefined what the parameters were for female performers." According to Fouz-Hernández, subsequent female singers such as Britney Spears, Christina Aguilera, Kylie Minogue, the Spice Girls, Destiny's Child, Jennifer Lopez, and Pink were like her "daughters in the very direct sense that they grew up listening to and admiring Madonna, and decided they wanted to be like her." Time magazine included her in the list of the "25 Most Powerful Women of the Past Century", where she became one of only two singers to be included, alongside Aretha Franklin. She also topped VH1's lists of "100 Greatest Women in Music" and "50 Greatest Women of the Video Era".
Document 2: Adult contemporary music: In addition to Celine Dion, who has had significant success on this chart, other artists with multiple number ones on the AC chart in the 1990s include Mariah Carey, Phil Collins, Michael Bolton, Whitney Houston and Shania Twain. Newer female singer-songwriters such as Sarah McLachlan, Natalie Merchant, Jewel, Melissa Etheridge and Sheryl Crow also broke through on the AC chart during this time.
Document 3: Madonna (entertainer): Madonna has received acclaim as a role model for businesswomen in her industry, "achieving the kind of financial control that women had long fought for within the industry", and generating over $1.2 billion in sales within the first decade of her career. Professor Colin Barrow from Cranfield School of Management described Madonna as "America's smartest businesswoman ... who has moved to the top of her industry and stayed there by constantly reinventing herself." London Business School academics called her a "dynamic entrepreneur" worth copying; they identified her vision of success, her understanding of the music industry, her ability to recognize her own performance limits (and thus bring in help), her willingness to work hard and her ability to adapt as the keys to her commercial success. Morton wrote that "Madonna is opportunistic, manipulative, and ruthless—somebody who won't stop until she gets what she wants—and that's something you can get at the expense of maybe losing your close ones. But that hardly mattered to her." Hazel Blackmore and Rafael Fernández de Castro in the book ¿Qué es Estados Unidos? from the Fondo de Cultura Económica, noted: "Madonna has been undoubtedly the most important woman in the history of popular music and a great businesswoman in herself; creating fashion, breaking taboos and provoking controversies."
Document 4: Beyoncé: Beyoncé's work has influenced numerous artists including Adele, Ariana Grande, Lady Gaga, Bridgit Mendler, Rihanna, Kelly Rowland, Sam Smith, Meghan Trainor, Nicole Scherzinger, Rita Ora, Zendaya, Cheryl Cole, JoJo, Alexis Jordan, Jessica Sanchez, and Azealia Banks. American indie rock band White Rabbits also cited her an inspiration for their third album Milk Famous (2012), friend Gwyneth Paltrow studied Beyoncé at her live concerts while learning to become a musical performer for the 2010 film Country Strong. Nicki Minaj has stated that seeing Beyoncé's Pepsi commercial influenced her decision to appear in the company's 2012 global campaign.
Document 5: Madonna (entertainer): In 1985, Madonna commented that the first song to ever make a strong impression on her was "These Boots Are Made for Walkin'" by Nancy Sinatra; she said it summed up her own "take-charge attitude". As a young woman, she attempted to broaden her taste in literature, art, and music, and during this time became interested in classical music. She noted that her favorite style was baroque, and loved Mozart and Chopin because she liked their "feminine quality". Madonna's major influences include Karen Carpenter, The Supremes and Led Zeppelin, as well as dancers Martha Graham and Rudolf Nureyev. She also grew up listening to David Bowie, whose show was the first rock concert she ever attended.
Document 6: Madonna (entertainer): Before emerging as a pop star, Madonna has spent her early years in rock music alongside her bands, Breakfast Club and Emmy. While performing with Emmy, Madonna recorded about 12-14 songs which resemble the punk rock of that period. Her early rock roots also can be found on the demo album Pre-Madonna. Stephen Thomas Erlewine noted that with her self-titled debut album, Madonna began her career as a disco diva, in an era that did not have any such divas to speak of. In the beginning of the '80's, disco was an anathema to the mainstream pop, and according to Erlewine, Madonna had a huge role in popularizing dance music as mainstream music. The album's songs reveal several key trends that have continued to define her success, including a strong dance-based idiom, catchy hooks, highly polished arrangements and Madonna's own vocal style. Her second album, Like a Virgin (1984), foreshadowed several trends in her later works. It contained references to classical works (pizzicato synthesizer line that opens "Angel"); potential negative reaction from social groups ("Dress You Up" was blacklisted by the Parents Music Resource Center); and retro styles ("Shoo-Bee-Doo", Madonna's homage to Motown).
Document 7: Madonna (book): Madonna is a biography by English author Andrew Morton, chronicling the life of American recording artist Madonna. The book was released in November 2001 by St. Martin's Press in the United States and in April 2002 by Michael O'Mara Books in the United Kingdom. Morton decided to write a biography on Madonna in 2000. The release was announced in April 2001 by St. Martin's Press. President and publisher Sally Richardson described the biography to contain details about Madonna's ambitions, her relationships and her lifestyle.
Document 8: Madonna (entertainer): Madonna's use of sexual imagery has benefited her career and catalyzed public discourse on sexuality and feminism. As Roger Chapman documents in Culture Wars: An Encyclopedia of Issues, Viewpoints, and Voices, Volume 1 (2010), she has drawn frequent condemnation from religious organizations, social conservatives and parental watchdog groups for her use of explicit, sexual imagery and lyrics, religious symbolism, and otherwise "irreverent" behavior in her live performances. The Times wrote that she had "started a revolution amongst women in music ... Her attitudes and opinions on sex, nudity, style and sexuality forced the public to sit up and take notice." Professor John Fiske noted that the sense of empowerment that Madonna offers is inextricably connected with the pleasure of exerting some control over the meanings of self, of sexuality, and of one's social relations. In Doing Gender in Media, Art and Culture (2009), the authors noted that Madonna, as a female celebrity, performer, and pop icon, is able to unsettle standing feminist reflections and debates. According to lesbian feminist Sheila Jeffreys, Madonna represents woman's occupancy of what Monique Wittig calls the category of sex, as powerful, and appears to gleefully embrace the performance of the sexual corvée allotted to women. Professor Sut Jhally has referred to Madonna as "an almost sacred feminist icon."
Document 9: Beyoncé: In The New Yorker music critic Jody Rosen described Beyoncé as "the most important and compelling popular musician of the twenty-first century..... the result, the logical end point, of a century-plus of pop." When The Guardian named her Artist of the Decade, Llewyn-Smith wrote, "Why Beyoncé? [...] Because she made not one but two of the decade's greatest singles, with Crazy in Love and Single Ladies (Put a Ring on It), not to mention her hits with Destiny's Child; and this was the decade when singles – particularly R&B singles – regained their status as pop's favourite medium. [...] [She] and not any superannuated rock star was arguably the greatest live performer of the past 10 years." In 2013, Beyoncé made the Time 100 list, Baz Luhrmann writing "no one has that voice, no one moves the way she moves, no one can hold an audience the way she does... When Beyoncé does an album, when Beyoncé sings a song, when Beyoncé does anything, it's an event, and it's broadly influential. Right now, she is the heir-apparent diva of the USA — the reigning national voice." In 2014, Beyoncé was listed again on the Time 100 and also featured on the cover of the issue.
Document 10: Madonna (entertainer): Madonna Louise Ciccone (/tʃɪˈkoʊni/; Italian: [tʃikˈkoːne]; born August 16, 1958) is an American singer, songwriter, actress, and businesswoman. She achieved popularity by pushing the boundaries of lyrical content in mainstream popular music and imagery in her music videos, which became a fixture on MTV. Madonna is known for reinventing both her music and image, and for maintaining her autonomy within the recording industry. Music critics have acclaimed her musical productions, which have generated some controversy. Often referred to as the "Queen of Pop", she is often cited as an influence by other artists.
Document 11: Madonna (entertainer): Life with My Sister Madonna, a book by Madonna's brother Christopher, debuted at number two on The New York Times bestseller list. The book caused some friction between Madonna and her brother, because of the unsolicited publication. Problems also arose between Madonna and Ritchie, with the media reporting that they were on the verge of separation. Ultimately, Madonna filed for divorce from Ritchie, citing irreconcilable differences, which was finalized in December 2008. She decided to adopt from Malawi. The country's High Court initially approved the adoption of Chifundo "Mercy" James; however, the application was rejected because Madonna was not a resident of the country. Madonna appealed, and on June 12, 2009, the Supreme Court of Malawi granted Madonna the right to adopt Mercy James. She also released Celebration, her third greatest-hits album and final release with Warner. It contained the new songs "Celebration" and "Revolver" along with 34 hits spanning her career. Celebration reached number one in the UK, tying her with Elvis Presley as the solo act with most number one albums in the British chart history. She appeared at the 2009 MTV Video Music Awards on September 13, 2009, to speak in tribute to deceased pop star Michael Jackson.
Document 12: My Story (Dannii Minogue book): My Story is a memoir by Australian singer Dannii Minogue. Written in the United Kingdom and Australia with the help of long-time friend Terry Ronald, the book was released in September 2010 in the UK and in October 2010 in Australia.
Document 13: Madonna (entertainer): Madonna gave another provocative performance later that year at the 2003 MTV Video Music Awards, while singing "Hollywood" with Britney Spears, Christina Aguilera, and Missy Elliott. Madonna sparked controversy for kissing Spears and Aguilera suggestively during the performance. In October 2003, Madonna provided guest vocals on Spears' single "Me Against the Music". It was followed with the release of Remixed & Revisited. The EP contained remixed versions of songs from American Life and included "Your Honesty", a previously unreleased track from the Bedtime Stories recording sessions. Madonna also signed a contract with Callaway Arts & Entertainment to be the author of five children's books. The first of these books, titled The English Roses, was published in September 2003. The story was about four English schoolgirls and their envy and jealousy of each other. Kate Kellway from The Guardian commented, "[Madonna] is an actress playing at what she can never be—a JK Rowling, an English rose." The book debuted at the top of The New York Times Best Seller list and became the fastest-selling children's picture book of all time.
Document 14: Madonna (entertainer): Various music journalists, critical theorists, and authors have deemed Madonna the most influential female recording artist of all time. Author Carol Clerk wrote that "during her career, Madonna has transcended the term 'pop star' to become a global cultural icon." Rolling Stone of Spain wrote that "She became the first viral Master of Pop in history, years before the Internet was massively used. Madonna was everywhere; in the almighty music television channels, 'radio formulas', magazine covers and even in bookshops. A pop dialectic, never seen since The Beatles's reign, which allowed her to keep on the edge of tendency and commerciality." Laura Barcella in her book Madonna and Me: Women Writers on the Queen of Pop (2012) wrote that "really, Madonna changed everything the musical landscape, the '80s look du jour, and most significantly, what a mainstream female pop star could (and couldn't) say, do, or accomplish in the public eye." William Langley from The Daily Telegraph felt that "Madonna has changed the world's social history, has done more things as more different people than anyone else is ever likely to." Alan McGee from The Guardian felt that Madonna is a post-modern art, the likes of which we will never see again. He further asserted that Madonna and Michael Jackson invented the terms Queen and King of Pop.
Document 15: Madonna (entertainer): Having sold more than 300 million records worldwide, Madonna is recognized as the best-selling female recording artist of all time by Guinness World Records. The Recording Industry Association of America (RIAA) listed her as the best-selling female rock artist of the 20th century and the second best-selling female artist in the United States, with 64.5 million certified albums. According to Billboard, Madonna is the highest-grossing solo touring artist of all time, earning US $1.31 billion from her concerts since 1990. She was ranked at number two, behind only The Beatles, on the Billboard Hot 100 All-Time Top Artists, making her the most successful solo artist in the history of American singles chart. Madonna became one of the five founding members of the UK Music Hall of Fame and was inducted into the Rock and Roll Hall of Fame in her first year of eligibility.
ground_truth: Andrew Morton
sub_queries: Who changed the dynamics of the singers back to mostly female? Answer: Madonna
Madonna >> author Answer: Andrew Morton