Question: When was the English singer, songwriter and guitarist, best known as the leader of Buzzcocks born who hadcontributions in The Invisible Girls?

Context paragraphs:
Kneel Cohn: Kneel Cohn (born January 12, 1976) in The Bronx, New York is the primary songwriter, lead singer and guitarist for Warshow Angels, and The Dead Stars On Hollywood, known for the songs "Prozac Smile" and "Flaunt it Like This".  He has performed with, produced songs and done remixing and production work with bands including Collide, Contagion, Patti Rothberg, and members of Crass, Buzzcocks, The Dandy Warhols, Hanoi Rocks, UK Subs, Consolidated, Black 'n Blue and Sin Corporation.

Francis Rossi: Francis Dominic Nicholas Michael Rossi, OBE (born 29 May 1949) is an English singer, songwriter and musician.  He is best known as the co-founder, lead singer and lead guitarist of the rock band Status Quo.

Roger Waters: George Roger Waters (born 6 September 1943) is an English singer, songwriter, bassist, and composer.  In 1965, he co-founded the progressive rock band Pink Floyd with drummer Nick Mason, keyboardist Rick Wright, and guitarist, singer, and songwriter Syd Barrett.  Waters initially served as the group's bassist, but following the departure of Barrett in 1968, he also became their lyricist, co-lead vocalist, and conceptual leader.

Pete Shelley: Pete Shelley (born Peter Campbell McNeish, 17 April 1955 in Leigh, Lancashire) is an English singer, songwriter and guitarist, best known as the leader of Buzzcocks.

Emma Bunton: Emma Lee Bunton (born 21 January 1976) is an English singer, songwriter, actress, and radio and television presenter.  She is best known as a member of the girl group the Spice Girls formed in the 1990s, and in which Bunton was nicknamed Baby Spice.  In 2009, she began as a radio presenter on the Heart Breakfast show in London with Jamie Theakston and presenting her own show on Saturday between 5 and 7 p.m.

Peter Marsh (musician): Peter Marsh (born 8 March 1952, UK) is an English singer, songwriter, guitarist and music producer.  He was a member of the band Easy Street, which released three albums.  The Easy Street single "I've Been Lovin' You" entered the "Billboard" chart in July 1976.  In the 1980s, he was best known as the lead singer in cult new wave group Blanket of Secrecy.  Marsh also worked with Vangelis, Manfred Mann's Earth Band and Godley & Creme.  His songs have been covered by artists including Nick Lowe and Jimmy Ruffin.  More recently, Marsh has worked in France.  He released the albums "Stop the Clock" in 2014 and "Back to the Beginning" in 2017.  A second Blanket of Secrecy album, recorded in the 1980s, was released in 2017.

Pete Wylie: Peter James Wylie (born 22 March 1958) is an English singer/songwriter and guitarist, best known as the leader of the band variously known as Wah! , Wah!  Heat, Shambeko!  Say Wah! , JF Wah! , The Mighty Wah!  and Wah!  The Mongrel.

Dave Davies: David Russell Gordon "Dave" Davies (born 3 February 1947) is an English singer, songwriter and guitarist.  He is best known as the lead guitarist, backing (and occasional lead) singer for the English rock band The Kinks, which also featured his older brother Ray Davies.

Bill Nelson (musician): Bill Nelson (born William Nelson, 18 December 1948, Wakefield, West Riding of Yorkshire , England) is an English singer, guitarist, songwriter, producer, painter, video artist, writer and experimental musician.  He rose to prominence as the chief songwriter, vocalist and guitarist of the rock group Be-Bop Deluxe, which he formed in the 1970s.  Nelson has been described as "one of the most underrated guitarists of the seventies art rock movement".  In 2015, he was recognised with the Visionary award at the Progressive Music Awards.  He currently lives in York.

The Invisible Girls: The Invisible Girls were a British rock band, formed in Salford, Greater Manchester in 1978, to provide a musical backdrop to the recorded output of Salford punk poet John Cooper Clarke.  The band's nucleus was Joy Division and New Order producer Martin Hannett and keyboardist Steve Hopkins, with contributions from, amongst others, Pete Shelley of Buzzcocks and Bill Nelson of Be-Bop Deluxe.  The band also played on the first solo album by Pauline Murray (lead singer of Penetration), the eponymous "Pauline Murray and the Invisible Girls" and some singles, and later with Nico for the single "Procession".

Supporting paragraphs: The Invisible Girls Pete Shelley
Answer: 17 April 1955