Question: The Keyboardist who joined the Cockroaches in 1981 was born on which day ?
Context: The Cockroaches are an Australian pub rock group active throughout the 1980s.  The band was founded in 1979 by the Field brothers−Paul (lead vocals), John (rhythm guitar, vocals), and Anthony Field (lead guitar, vocals)−and Tony Henry on drums and Joseph Hallion on saxophone.  They were joined in 1981 by Jeff Fatt on keyboards.  In 1986 they signed with an independent label, Regular Records, which issued their first three albums, including "The Cockroaches" (March 1987), which peaked at No. 9 on the Australian Kent Music Report Albums Chart; it sold 70,000 copies and was certified platinum by their label.  The album spawned the single "She's the One", which became the band's biggest hit when it peaked at No. 7 on the Kent Music Report Singles Chart in April 1987.  In 1988, "The Daily Telegraph" declared The Cockroaches, who played over 300 gigs a year, the "Hardest Working Rock'n'Roll Band" in the country. Caleb Joshua Shomo (born December 1, 1992) is the lead vocalist of hardcore band Beartooth, the former lead vocalist, guitarist, keyboardist, and early on backing vocalist of metalcore band Attack Attack! , and the owner of Studio Records in Columbus, Ohio.  Shomo joined Attack Attack!  as keyboardist at 14 years old while maintaining a passion for electronic music and eventually grew into record production by 18. Jeffrey Wayne Fatt AM (born 21 July 1953 in Casino, New South Wales, Australia), is an Australian musician and actor.  He is best known as a member of the children's band The Wiggles and the 1980s and 90s band The Cockroaches. Frank "Skip" Konte (born October 2, 1947) is an American keyboardist.  He joined The Blues Image in 1967, and stayed with them until they split in 1971.  Along with bandmate Mike Pinera, he wrote their one hit single, "Ride Captain Ride."  Konte then joined Three Dog Night as second keyboardist in 1973, and left in 1976.  He has since become a record producer.  He is currently working on a Sci-Fi movie titled "Meridian".  He is sometimes referred to as the "Wizard of all Northern Realms". Shaun MacGowan (born 1988) is a UK-born violinist, keyboardist and guitarist, best known as the keyboardist and violinist of British doom metal band My Dying Bride.  He replaced Katie Stone in 2009, and joined the band to tour the album "For Lies I Sire".  His first studio appearance with the group came on the 2009 EP "Bring Me Victory", on which he played on two new tracks. Christine Anne Perfect (born 12 July 1943), known professionally as Christine McVie after her marriage to John McVie, is a British singer, keyboardist, and songwriter.  She is best known as the keyboardist and co-lead vocalist of the band Fleetwood Mac, which she joined in 1970 while married to bassist McVie.  She has also released three solo albums.  McVie is known for her smoky, alto vocals and her direct but poignant lyrics, which are mostly concerned with relationships.  AllMusic describes her as an "Unabashedly easy-on-the-ears singer/songwriter, and the prime mover behind some of Fleetwood Mac's biggest hits."  Eight of her songs appeared on Fleetwood Mac's 1988 "Greatest Hits" album. "Get It Up" is a song by The Time, from their 1981 debut album, and is their debut single.  Like most of the album, the song was recorded in Prince's home studio in April 1981, and was produced, arranged, composed and performed by Prince with Morris Day later adding his lead vocals.  Revolution keyboardist Doctor Fink provided synth solos on the track, uncredited. Tant Strul was a Swedish punk rock band that are considered as the leading all female punk rock band in Sweden, although they at times had a male member.  The last setting before they split up was: vocalist, guitarist and song-writer Kajsa Grytt, keyboardist Malena Jönsson, bassist Liten Falkeholm, drummer Nike Markelius, and cellist Sebastian Öberg (from the Flesh Quartet).  The band started in 1981 with band members Kärsti Stiege (the mother of Swedish pop star Lykke Li), Liten Falkeholm, Kajsa Grytt, Malena Jönsson and Micke Westerlund.  Kärsti left after the first two singles, and Micke left after the first LP "Tant Strul" (1981) and was replaced by Nike.  The band now consisted of four women: Kajsa Grytt, Malena Jönsson, Liten Falkeholm and Nike Markelius.  After the second LP "Amason" (1983), Sebastian Öberg joined the group.  After the third LP "Jag önskar dig" (1984) the group split up. In 1981, Nichidatsu Fujii dispatched his followers to march and chant around the globe in support of the U.N. 2nd.  special session for disarmament.  In the U.S. marchers began in New Orleans, L.A. and San Francisco, in Canada marchers began in Montreal and Toronto.  The San Francisco March began on Oct. 21, 1981 with a ceremony on Alcatraz.  13 marchers, being Buddhist followers of Nipponzan-Myōhōji, Native Americans, U.S. and German citizens, began the S.F. march.  marching about 20 mile per day they were hosted each night by community groups in every town and on Native reservations.  many mayors and town councils made proclamations and such honoring the peace and disarmament marchers.  Over the course of the march citizens were moved to join.  By the time they arrived in Chicago the S.F. marchers numbered about 30.  In May 1982 the group of about 40 marchers from Toronto joined the S.F. group in Buffalo N.Y. at the International Peace Bridge doubling the size of the group.  Through the state of N.Y. 10 to 20 people joined the march daily.  When the S.F. group walked across the George Washington Bridge they numbered about 300.  The groups on other march routs also grew over the 7 months.  On June 12, 1982, in Central Park Nipponzan-Myōhōji marchers from the U.S.A., Europe, Africa, and Asia, joined with mobilization for survival organizers and religious and peace groups from around the world in a peaceful demonstration for disarmament of many million people. Ryo Okumoto (奥本亮, born May 24, 1959) is a Japanese rock keyboardist, best known for his work with progressive rock group Spock's Beard.  He joined the band in 1996 and has been a member ever since.  When singer and keyboardist Neal Morse was in the band, Ryo played Hammond Organ and Mellotron on the albums.  Now he has taken full keyboard duties, therefore playing synthesiser, especially the Minimoog.  He resides in Los Angeles.
Answer: 21 July 1953