Question: Yesterday's Hero is a pop song that was written by an Australian musician that was born in what year?

Context articles: Goodbye to Yesterday (No Angels song)
Estonia in the Eurovision Song Contest 2015
The Day After Yesterday
Don't Worry Be Happy (Guy Sebastian song)
Premio Lo Nuestro 2003
Billy Baxter (song)
Yesterday's Hero (John Paul Young song)
Tengo Todo Excepto a Ti
La Chica de Ayer
George Young (rock musician)

"Goodbye to Yesterday" is a song by all-female German pop group No Angels.
 It was written by Pelle Ankarberg, Joacim Persson, Niclas Molinder, and David Jassy and produced by Sweden production team Twin for the band's comeback record, their fourth studio album "Destiny" (2007).
 The No Angels's first release after a three-year hiatus, the song also marked their first commercial release to feature the group's second lineup, which excluded original band member Vanessa Petruo.
 Musically, "Goodbye to Yesterday" is a piano-led pop ballad with elements of rock pop; the song's lyrics are about the breakdown of a relationship which the female protagonist refuses to start all over again.
Estonia participated in the Eurovision Song Contest 2015 with the song "Goodbye to Yesterday", written by Stig Rästa.
 The song was performed by Elina Born and Stig Rästa.
 Estonian broadcaster Eesti Rahvusringhääling (ERR) organised the national final "Eesti Laul 2015" in order to select the Estonian entry for the 2015 contest in Vienna, Austria.
 After two semi-finals and a final, "Goodbye to Yesterday" performed by Elina Born and Stig Rästa were selected, winning the super final of the competition with 79% of the public televote.
 In the first of the Eurovision semi-finals "Goodbye to Yesterday" placed third out of the 16 participating countries, securing its place among the 27 other songs in the final.
 In Estonia's twenty-first Eurovision appearance on 23 May, "Goodbye to Yesterday" finished in seventh place, receiving 106 points.
The Day After Yesterday is a 2005 studio album by Australian musician, singer-songwriter, and actor Rick Springfield.
"Don't Worry Be Happy" is a pop song written and performed by Australian recording artist Guy Sebastian.
 It is the lead single from Sebastian's seventh album "Armageddon".
 "Don't Worry Be Happy" was released digitally in Australia on 18 November 2011.
 It peaked at number five on the ARIA Singles Chart, and has reached 4× platinum certification.
 It was Sebastian's eighth of 11 top ten singles in Australia.
 In 2012 "Don't Worry Be Happy" was nominated for the ARIA Music Award for Single of the Year and was shortlisted for the APRA Song of the Year.
 It has received 2013 APRA nominations for Most Played Australian Work and Pop Work of the Year.
Premio Lo Nuestro 2003 was the 15th anniversary of the awards.
 the show was hosted by Mexican presenters Marco Antonio Regil and Adal Ramones.
 Juanes, Thalía, Marc Anthony, Pilar Montenegro, Sin Bandera, Banda el Recodo and other Latin music greats gave electrifying performances.
 In the show, there was 36 awards winners with 135 nominations.
 In Pop genre, Awards was given for : Album of the Year, Best Male Artist, Best Female Artist, Best Group or duo, Best New Artist and Song of the Year.
 In Rock Genre : Best Rock Album and Best rock Performer of the Year.
 In Tropical genre : Best Tropical Album of the Year, Best Tropical Male Artist, Best Tropical Female Artist, Best Tropical Group or Duo of the Year, Best Tropical New Artist, Tropical Song of the Year, Best Merengue Performance, Best Salsa Performance and Best Traditional Performance.
 Juanes was the biggest winner of night, took home four awards Best Pop Male Artist, Best Music Video, Best Rock Performance, and Pop Song of the Year .
 In the Regional Mexican, Pilar Montenegro took three awards for Regional Mexican Song of the Year, Pop Song of the Year ("Quitame Ese Hombre"), and for Best Regional Mexican Female Artist.
 In the tropical genre, Celia Cruz took home with four great awards of the night for Best Salsa Performance, Best Tropical Female Artist, Best Tropical Song of the year and Tropical Album of the Year.
 At the night, the greatest performance was a medley of top Latin hits from the last 15 years, performed by the artists that made them famous, including Vikki Carr, Son by Four, Los Ilegales, La Mafia, Luis Enrique, Wilfrido Vargas and Olga Tañón.
 There was a great tribute to Celia Cruz by the world-famous salsa group "Fania All-Stars", of which Cruz was a member during the 1970s, reunited for an exclusive performance that rocked the house.
"Billy Baxter" is the third single by Australian rock group Paul Kelly and the Dots which was released on 20 October 1980, ahead of the related album, "Talk" (March 1981).
 It was written by band members Paul Kelly and Chris Langman.
 It peaked at No. 38 on the Australian Kent Music Report Singles Chart.
 The song was produced by Joe Camilleri (from Jo Jo Zep & The Falcons) for Mushroom Records.
 In early November the group performed the track on national pop music TV show, "Countdown" – it was Kelly's first TV appearance.
 The song's subject, Billy Baxter, is an Australian musician and was a long term member of "Coodabeens Footy Show" on ABC Radio National.
"Yesterday's Hero" is a pop song by John Paul Young.
 The song was written by George Young and Harry Vanda and was released in February 1975 as the lead single from Young's debut studio album, "Hero" (1975).
"Tengo Todo Excepto a Tí" (English: ""I Have Everything But You"" ) is a pop song written, produced, and arranged by Juan Carlos Calderón, and performed by Mexican singer Luis Miguel.
 It was released as the lead single from his studio album "20 Años" (1990).
 It reached the number one position all over Ibero-America, became his fourth number-one single in the "Billboard" Hot Latin Songs chart after "Ahora Te Puedes Marchar", "La Incondicional" and "Fría Como el Viento" and was nominated for Pop Song of the Year at the Lo Nuestro Awards.
 The parent album peaked at number two in the Latin Pop Albums chart and sold more than 600,000 copies in its first week of release.
"La Chica de Ayer" (Eng.: "Yesterday Girl") is a pop song written by Antonio Vega and recorded by Spanish rock band Nacha Pop and was included on their album "Un Día Cualquiera".
George Redburn Young (born 6 November 1946) is an Australian musician, songwriter and record producer.
 Born in Scotland, he moved to Australia with his family as a teenager, and became a naturalised citizen.
 He is best known as a member of the 1960s Australian rock band the Easybeats, and as a co-writer of the international hits "Friday on My Mind" and "Love Is in the Air", the latter recorded by John Paul Young (no relation).
 Young was also the producer of some work by the Australian hard rock band AC/DC, formed by his younger brothers Malcolm and Angus Young.