Question: What is the birth year of this Scottish-born Australian rock singerwho was the lead singer of The Party Boys?

Context articles: Kaiya Jones
Jock Ferguson (politician)
Swanee (singer)
The Party Boys (album)
George Henderson (Australian politician)
Jimmy Barnes discography
William Russell (Australian politician)
John Grant (Australian politician)
Mark Evans (musician)
Robert Guthrie (Australian politician)

Kaiya Jones (born 19 March 1996) is a Scottish-born Australian actress best known for playing the role of Sophie Ramsay in the Australian soap opera "Neighbours".
 She previously played Jess Cooper in the third series of "The Saddle Club".
 Jones wrote and directed a short film called "Coping", which was screened at Tropfest in 2013.
 In 2014, she joined the cast of "Party Tricks".
John Kilday "Jock" Ferguson (15 January 194613 February 2010) was a Scottish-born Australian politician.
 Born in Glasgow, Scotland, Ferguson worked as a fitters apprentice delegate to the Boilermakers Union.
 He served in the British Merchant Navy before moving to New Zealand.
 Arrived in Western Australia in 1976 to work as a fitter in the Pilbara and Gascoyne regions.
 Later Ferguson became a member of the AMWU (Australian Manufacturing Workers Union) and rose to become the union's secretary for Western Australia in 2000.
 He also held a City and Guilds Trade Certificate (Engineering).
 In 2008, he was elected to the Western Australian Legislative Council as a Labor Party member, representing East Metropolitan Region.
 His term commenced on 22 May 2009.
 Ferguson died after a heart attack at his home on 13 February 2010.
John Swan {'1': ", '2': ", '3': ", '4': "} (born 1952 in Glasgow, Scotland), better known as Swanee, is a Scottish-born Australian rock singer.
The Party Boys is self-titled album by Australian rock band The Party Boys.
 It was the band's first and only studio album.
 Tracks 2, 4, 5 and 8 were originals, the rest of the songs were originally recorded by (in order): Argent, John Kongos, Them, The Angels, La De Da's and AC/DC, however "It Could Have Been You" was originally released by Party Boy's lead singer John Swan as a single in 1985.
Christopher George Henderson (19 August 1857 – 21 January 1933) was a Scottish-born Australian politician.
 Born in Clackmannanshire, he received a primary education before migrating to Australia in 1885.
 He was a coal miner in New South Wales and general secretary of the Illawarra Miners' Union.
 He moved to Western Australia around 1900, becoming a coal miner at Collie and serving on Collie Municipal Council.
 In 1903, he was elected to the Australian Senate as a Labor Senator for Western Australia.
 He served as Chairman of Committees from 1914 to 1917.
 Henderson left the Labor Party in the wake of the 1916 split over conscription, joining the new Nationalist Party.
 He remained a Nationalist Senator until his defeat in 1922.
 Henderson died in 1933.
This is a discography of the Scottish-born Australian rock singer-songwriter and rock guitarist Jimmy Barnes.
William Russell (20 October 1842 – 28 June 1912) was a Scottish-born Australian politician.
 Born in Lanarkshire, he was educated in Scotland before becoming a farm worker.
 Migrating to Australia in 1866, he became a solicitor in 1873 and farmed in South Australia.
 He served on the Caltowie and Carrieton district councils, and joined the Australian Labor Party in 1894.
 In 1895, he was elected to the South Australian Legislative Council; he departed the Council in 1900, winning the House of Assembly seat of Burra in 1901.
 He left the Assembly in 1902.
 In 1906, he was elected to the Australian Senate as a Labor Senator for South Australia.
 He died in 1912, necessitating an appointment to replace him; the South Australian Parliament, controlled by the Liberal Party, successfully installed Liberal John Shannon, the first instance when a Senator of a different party was appointed.
John Grant (1857 – 19 May 1928) was a Scottish-born Australian politician.
 Born in Abernethy, he received a primary education before becoming a stonemason.
 Migrating to Australia in 1880, he became Secretary of the Stonemasons' Union and a founding member of the New South Wales Labor Party.
 He served as the NSW ALP's General Secretary before his election to the Australian Senate in 1914 as a Labor Senator from New South Wales.
 Defeated in 1919, he returned to the Senate in 1922, holding the seat until his death in 1928.
Mark Whitmore Evans (born 2 March 1956) is an Australian bass guitarist for the Australian rock band Rose Tattoo who was an early member of hard rock band AC/DC from March 1975 to June 1977.
 His playing featured on their albums "T.N.T", "High Voltage", "Dirty Deeds Done Dirt Cheap", "Let There Be Rock" and "'74 Jailbreak".
 Evans has played for numerous other groups, sometimes on lead guitar, including Finch (a.k.a. Contraband), Cheetah, Swanee, Heaven and The Party Boys.
 Evans' autobiography, "Dirty Deeds: My Life Inside/Outside of AC/DC" was released in December 2011.
Robert Storrie Guthrie (17 November 1857 – 20 January 1921) was a Scottish-born Australian politician.
 He was educated at Glasgow before becoming a seaman and migrating to Australia in 1887.
 He was South Australian Secretary and Federal President of the Seamen's Union before entering the South Australian Legislative Council as a Labor member in 1891.
 In 1903 he left the Council to contest the Australian Senate, in which he was successful.
 Originally a Labor Senator, he left the party in the wake of the 1916 split over conscription, joining the Nationalist Party.
 He died in 1921, necessitating the appointment of Nationalist Edward Vardon to replace him.