Question: When was the English singer, songwriter, and actor born who made his debut with the band White Eskimo and Irving Azoff was his personal manager?

Context articles: John Schneider (producer)
John L. Reese
Irving Azoff
Joe Graydon
Toots Deville
Harry Styles
Frances Blogg
Merle Kilgore
John Poulos
Pat Musick

John Schneider (born April 23, 1962) is an American film, television and multi-media producer and artists' manager based in Los Angeles, California.
 The Pacifica, California native made his first forays into show business when he took on the position of personal manager for his younger brother, comedian and actor Rob Schneider, and subsequently managed the San Francisco area rock band Head On.
 Eventually, John transitioned into producing movies such as "The Hot Chick" and "", alongside executive producers Adam Sandler and Jack Giarraputo.
John L. Reese (born 1961) is a Phoenix-born music executive who got started in the music industry by owning a concert security company in Phoenix.
 That led to Guns N' Roses manager Doug Goldstein hiring him to become the band's tour manager for their 1989 Los Angeles Coliseum concerts with the Rolling Stones, then as the tour manager for the massive Use Your Illusion Tours and then as a partner and personal manager with Big FD Entertainment, representing a number of artists including Guns N' Roses, The Stone Roses, Blind Melon and many more.
Irving Azoff ( ; born December 12, 1947) is an American entertainment executive and personal manager, representing recording artists such as Harry Styles, Christina Aguilera, Journey, Eagles, Dan Fogelberg, Joe Walsh, Van Halen, Thirty Seconds to Mars, Steely Dan, Maroon 5, No Doubt, Gwen Stefani, Triumph, Lindsey Buckingham of Fleetwood Mac, Jon Bon Jovi, Bon Jovi, and entertainer Chelsea Handler.
Joe Graydon (February 6, 1919 – May 19, 2001), was an American big band vocalist, television host, personal manager and concert producer.
 He is the father of Grammy-winning songwriter Jay Graydon.
Toots Deville (February 19, 1950 – August 19, 2004) was known as the wife of musician Willy Deville, and for her work as his personal manager and association with the band Mink DeVille during the 1970s.
 She was also a model and appeared in rock magazines like Creem.
 Her outlandish behavior and appearance made her a controversial figure in the music world for most of her life.
Harry Edward Styles (born 1 February 1994) is an English singer, songwriter, and actor.
 He made his debut as a singer with his band White Eskimo, who performed locally in Holmes Chapel, Cheshire.
 Styles rose to stardom as a member of the boy band One Direction, formed in 2010 through the British music competition series "The X Factor".
 One Direction has released five albums, performed four worldwide tours, and won several awards.
Frances Chesterton, born Frances Alice Blogg (1869–1938) was an English author of verse, songs and school drama.
 She was the wife of G.K. Chesterton and had a large role in his career as amanuensis and personal manager.
Wyatt Merle Kilgore (August 9, 1934 – February 6, 2005) was an American singer, songwriter, and manager.
 He was an artist and writer; the personal manager of Hank Williams Jr. at the time of his death.
John Poulos (born March 31, 1947) was the original drummer for The Buckinghams.
 He was a founding member of the Chicago area band in 1965.
 His mother Ann and his father John Sr.,were very proud of their youngest child in a family of solid Greek heritage.
 He graduated from Roosevelt High School in the Albany Park neighborhood of Chicago, Illinois in 1965.
 Lead guitar player Carl Giammarese lived only a few blocks away from John Poulos in the Albany Park neighborhood of Chicago.
 His nickname since his late teens was "Jon Jon".
John Poulos was the leader of a high school band in Chicago called "The Pulsations".
 He approached singers George LeGros and  Dennis Tufano who sang harmonies in an acapella group called The Darsals to come join his band,"The Pulsations".
 Local Chicago-area deejay and booking agent @ Willard - Alexander agency Carl Bonafede attests to the fact that Jon Jon personally recruited singers Dennis Tufano and his close friend George Legros at Gordon Tech high school to the band Jon Jon Poulos approached Carl Bonafede head deejay who spun records for Dan Belloc's dances at the Holiday ballroom about becoming the manager of John's high school band "The Pulsations".
 When USA Records released The Buckinghams from their contract, the band had a #1 hit on the Billboard Hot 100 charts with Kind of a Drag.
 The members voted to part ways with personal manager Carl Bonafede.
 Jon Jon Poulos and Dennis Tufano flew out to Los Angeles to meet with James William Guercio to seek management and a new record deal.
 The meeting with Guercio led to The Buckinghams signing a new record contract with Columbia Records.
 John went into the music management side of the music business after the Buckinghams agreed to part ways in 1970.
 John managed his fellow ex-Buckinghams Carl Giammarese and Dennis Tufano when they formed a duo called "Tufano & Giammarese".
 "When The Buckinghams broke up in 1970 and Nick departed for a career in R&B and Marty wanted to go a different direction, Dennis Tufano and Carl decided to form a duo, Dennis and Carl.
 We put together a demo CD, with the help of Peter Shelton and his wife, and John determined to manage us and find us a recording deal.
 Reaching for the stars, he reached a zenith: John brought us to Ode Records, where we signed with Lou Adler, became “Tufano and Giammarese” and spent 7 years of our career together."
 John Poulos managed several other Illinois bands, most notably a band from the Fox River Grove area called Boyzz from Illinois.
 He died of heart failure in his Chicago home just short of his 33rd birthday in 1980.
 Carl Bonafede maintains there never would have been a Buckinghams band if not for the commitment of Jon Jon Poulos.
 His love of music and dedication to the band was unique.
 He often shared discussion of the business side of music with "the Screaming Wildman".
 John had one child, a daughter, Polly who was born in September 1970.
Patrice Anne "Pat" Musick (born January 26, 1956) is an American voice actress, who has provided numerous voices in many television shows, films and video games.
 She and her former husband Jeff Whitman, a personal manager and set construction co-ordinator, are the parents of actress and singer Mae Whitman.