Question: When did the producer born on June 25, 1963 release his first song that became a UK and US number one hit? 
Context: Siobhán Fahey ( , born 10 September 1958) is an Irish musician, whose vocal range is a light contralto.  She was a founding member of the 1980s British girl group Bananarama, who had a US number one hit with the 1986 single "Venus".  She later formed the Brit Award- and Ivor Novello Award-winning musical act Shakespears Sister, who had a UK number one hit with the 1992 single "Stay".  It was announced in April 2017 that Fahey would join the other original members of Bananarama for an upcoming UK tour. A New World Record is the sixth studio album by Electric Light Orchestra (ELO).  It was released on 11 September 1976 in the United Kingdom by Jet Records, and a day later in the United States by United Artists Records.  "A New World Record" marked ELO's shift towards shorter pop songs, a trend which would continue across their career.  Their second album to be recorded at Musicland Studios in Munich, the LP proved to be the band's breakthrough in the UK; after their previous three studio recordings failed to chart in their home market, "A New World Record" became their first top ten album in the UK.  It became a global success and reached multi-platinum status in the US and UK, The album sold five million units worldwide within its first year of release.  The cover art features the ELO logo, designed by Kosh, for the first time.  This logo would be included on most of the group's subsequent releases.  The album yielded four hit singles, including "Livin' Thing", the transatlantic Top Ten hit "Telephone Line", which became the band's first gold US single, the UK Top Ten hit "Rockaria! ", and the US number 24 hit "Do Ya", a remake of the 1972 single by The Move, of which Lynne was a member between 1970 and 1972. The Human League are an English synth-pop band formed in Sheffield in 1977.  After signing to Virgin Records in 1979, the band released two albums and a string of singles before attaining widespread commercial success with their third album "Dare" in 1981.  The album contained four hit singles, including the UK/US number one hit "Don't You Want Me".  The band received the Brit Award for Best British Breakthrough Act in 1982.  Further hits followed throughout the 1980s and into the 1990s, including "Being Boiled", "Mirror Man", "Fascination", "The Lebanon", "Human" (a US No. 1) and "Tell Me When". "The Tide Is High" is a 1966 song written by John Holt, originally produced by Duke Reid and performed by the Jamaican group The Paragons, with John Holt as lead singer.  The song gained international attention in 1980, when a version by the American band Blondie became a US/UK number one hit.  The British girl group Atomic Kitten also had a number one hit with their version of the song in 2002, and a version of the song was a minor hit for Canadian rapper Kardinal Offishall in 2008. "Go Away Little Girl" is a popular song written by Gerry Goffin and Carole King.  It was first recorded by Bobby Vee for Liberty Records on March 28, 1962.  The lyrics consist of a young man asking a young attractive woman to stay away from him, so that he will not be tempted to betray his steady girlfriend by kissing her.  The song is notable for making the American Top 20 three times: for Steve Lawrence in 1962 (US number 1), for The Happenings in 1966 (US number 12), and for Donny Osmond in 1971 (US number 1).  It is also the first song, and one of only nine, to reach US number 1 by two different artists. Georgios Kyriacos Panayiotou (25 June 1963 – 25 December 2016), known professionally as George Michael, was an English singer, songwriter, record producer, and philanthropist who rose to fame as a member of the music duo Wham!  He was best known for his work in the 1980s and 1990s, including hit singles such as "Wake Me Up Before You Go-Go" and "Last Christmas", and albums such as "Faith" (1987) and "Listen Without Prejudice Vol.  1" (1990). "She Ain't Worth It" is a song recorded by Glenn Medeiros with a rap verse from singer Bobby Brown.  It hit number one for two weeks on the "Billboard" Hot 100 on July 21, 1990, becoming Medeiros' only number one hit in America and Brown's second and last number one hit after "My Prerogative".  The single also reached the Top 20 in the UK Singles Chart where Medeiros had previously reached number 1 with his hit "Nothing's Gonna Change My Love for You". Sylvain Cossette (born May 8, 1963) is a French-Canadian singer-songwriter from Grand-Mère, Quebec (located in the Mauricie region).  Sylvain was a founding member of the Quebec-based English language band Paradox in 1984, before becoming a French language solo artist by 1994.  During his career he has sold over one million albums (12 Gold and Platinum), recorded thirty-two #1 hit songs and eight Number 1 albums, earned six Silver, Gold and Platinum Tickets, won 10 Quebec Felix Music Awards, six Socan awards and four Juno nominations, and performed in Canada and Europe in the hit stage musicals "Notre Dame De Paris" and "Dracula".  Cossette's 2001 album "Rendez-vous" was certified Platinum by the CRIA in November 2002.  His 2007 album "70s" (#1 Quebec, #2 Canada) is his first all English release and produced four Number 1 hit singles and two Number 1 hit videos.  The album went Gold (50,000 CDs sold) in 27 days and Platinum (100,000 CDs sold) in 15 weeks.  The 70s concert tour went Silver Ticket (25,000 tickets sold) in three months and Gold Ticket (50,000 tickets sold) within a year.  On October 21, 2008, he released the album "70s Volume 2" and produced three Number 1 hit singles and one Number 1 hit video.  The album went Gold (50,000 CDs sold) in 19 days and Platinum (100,000 CDs sold) in 11 weeks.  On October 25, 2010, the album 70s Volume 3 was released and quickly went Gold.  The 70s project has so far sold almost 400,000 albums, 150,000 concert tickets and been seen by over a 650,000 people at outdoor festivals.  In September 2011 he launched his new one-year tour «The Best of the 70s».  In October 2011, two compilation albums were released of his greatest French language hits.  On October 1, 2012, he release his first original French language album in 12 years called "Le jour d'après" (4 number one hit songs) which he wrote, co-arranged and co-produced.  His next album RETROSPECTIVE spawned a tour throughout French Canada in 2013-2014.  In April 2014 he released an album "Les numérous 1" of his career #1 hit songs that he composed.  A new trilogy project (album/photobiography book/tour) called ACCORDS was released in October 2014 and spawned three Number 1 hit singles followed by a tour throughout French Canada in 2015.  In 2014-16 he was the creative force behind two children projects (albums and live shows): Lily et le Lutin & Pyjama Party.  In 2017 he released his first instrumental album Café et Guitares in over 200 countries. "Wake Me Up Before You Go-Go" is a song by the British duo Wham! , first released as a single in the UK on 14 May 1984.  It became their first UK and US number one hit.  It was written and produced by George Michael.  The single was certified Platinum in the US, which at the time commemorated sales of over two million copies. John Parr (born 18 November 1952) is an English musician, who had two number one hits, best known for his 1985 US number one hit single "St. Elmo's Fire (Man in Motion)" and in 1984 for his US number one rock single "Naughty Naughty."  Parr has sold 10 million albums worldwide, and has written and performed 12 Hollywood movie themes, including for "Three Men and a Baby", "Near Dark", and "The Running Man".  He was nominated for a Grammy award for "St Elmo's Fire" in 1985.
Answer: 14 May 1984