Question: When was the English singer-songwriter who formed the Electric Light Orchestra born

Context paragraphs:
The Very Best of the Electric Light Orchestra: The Very Best of Electric Light Orchestra is a compilation album by the Electric Light Orchestra (ELO), released in 1994.  It peaked at number four on the UK Albums Chart.

The Essential Electric Light Orchestra: The Essential Electric Light Orchestra is a single CD, US-only compilation album by the Electric Light Orchestra (ELO), released in 2003.  It is part of Sony Music's "The Essential" series.  It was preceded by US compilations "Olé ELO" in 1976 and "" in 1995.

Electric Light Orchestra Live: Electric Light Orchestra Live is a live album by Electric Light Orchestra.  It was released on 19 April 2013 in the UK, and on 23 April in the US on Frontiers Records.

The Electric Light Orchestra (album): The Electric Light Orchestra is the eponymous debut studio album by English rock band Electric Light Orchestra (ELO), released in December 1971 in the United Kingdom by Harvest Records.  In the United States, the album was released in early 1972 as No Answer, after a misunderstood telephone message made by a United Artists Records executive asking about the album name; the caller, having failed to reach the ELO contact, wrote down "no answer" in his notes, and this was misconstrued to be the name of the album.

Eldorado (Electric Light Orchestra album): Eldorado (subtitled as A Symphony by the Electric Light Orchestra) is the fourth studio album by the Electric Light Orchestra (ELO).  It was released in the United States in September 1974 by United Artists Records and in the United Kingdom in October 1974 by Warner Bros.  Records.

ELO 2: ELO 2 is the eponymous second studio album by the Electric Light Orchestra (ELO), released in 1973.  In the US, the album was released as Electric Light Orchestra II.  It was also the last album to be released by the band under the Harvest label, the last where the band used the definite article "The" on its name and introduced their acronym ELO.

Roy Wood: Roy Wood (born 8 November 1947) is an English singer-songwriter and multi-instrumentalist.  He was particularly successful in the 1960s and 1970s as member and co-founder of the Move, Electric Light Orchestra and Wizzard.  As a songwriter, he contributed a number of hits to the repertoire of these bands.

Violinski: Violinski was a rock band formed in 1977 by Electric Light Orchestra member Mik Kaminski on violins, and former member Mike de Albuquerque on guitar and vocals; plus Barry Dunnery (formerly of Necromandus), John Hodgson (drums), Paul Mann, John Marcangelo (keyboards) and Iain Whitmore (bass guitar and vocals), formerly with Starry Eyed And Laughing.  At one point, former Wizzard member Bob Brady was lead vocalist, and Rod Butler, who played lead guitar for a while, also appeared on the BBC show, "Top of the Pops".  At the time Kaminski was still a member of the Electric Light Orchestra, who were then enjoying their greatest success.  John Hodgson had been a member of Rick Wakeman's band, the English Rock Ensemble, performing on percussion.  He appeared on "The Myths and Legends of King Arthur and the Knights of the Round Table" and "Lisztomania" albums.  He toured with Wakeman to North and South America, Japan, Australia and New Zealand during the period 1974-1976.

Richard Tandy: Richard Tandy (born 26 March 1948) is an English musician, best known as the keyboardist in the rock band Electric Light Orchestra ("ELO").  His palette of keyboards (including Minimoog, Clavinet, Mellotron, and piano) was an important ingredient in the group's sound, notably on the albums "A New World Record", "Out of the Blue", "Discovery", and "Time".  Tandy was inducted into the Rock and Roll Hall of Fame on 7 April 2017 as a member of Electric Light Orchestra.

Electric Light Orchestra: The Electric Light Orchestra (ELO) are an English rock band formed in Birmingham in 1970, by songwriters/multi-instrumentalists Jeff Lynne and Roy Wood with drummer Bev Bevan.  Their music is characterised by a fusion of Beatlesque pop, classical arrangements, and futuristic iconography.  After Wood's departure in 1972, Lynne became the band's leader, arranging and producing every album while writing virtually all of their original material.

Supporting paragraphs: Electric Light Orchestra Roy Wood
Answer: 8 November 1947