10 June 2016 Last updated at 11:03 BST
We Were There was written in 1982 by Leicester singer Bob Wragg in support of England's World Cup finals campaign in Spain.
Mr Wragg, 82, said the song was about to be released when the Falklands conflict broke out and it was thought to be "inappropriate at a time of war".
The recording features players including Gordon Banks, Bobby Moore, Martin Peters and Alan Ball singing along with former England manager Sir Alf Ramsey.
FULL STORY: World Cup anthem sung by England's 1966 team released after 34 years

Cardiff and Vale University Health Board confirmed it had shut the mental health wards to prevent further spread of the virus.
The health board said a number of cases had been confirmed in the community, including in care homes.
Dr Tom Porter urged anyone eligible to get a free flu vaccine to reduce risk.
He said: "Every year flu causes thousands of deaths across the UK and vaccination is a quick and effective way of reducing your risk."
The dominant strain circulating in the community is influenza A (H3), which particularly affects the elderly.

Mayor Stephanie Rawlings-Blake said she was replacing Police Commissioner Anthony Batts with his deputy, Kevin Davis, for an interim period.
The city was rocked by riots in April when a black man died after suffering injuries in police custody.
Six officers were charged over the death of the 25-year-old, Freddie Gray.
Speaking at a news conference on Wednesday, Mayor Rawlings-Blake said Mr Batts had "served this city with distinction" since becoming police chief in October 2012.
But referring to the city's high homicide rate, she said "too many continue to die".
"The focus has been too much on the leadership of the department and not enough on the crime fighting," she told reporters, adding: "We need to get the crime surge under control."
The city has seen a sharp increase in violence since Freddie Gray's death on 19 April, with 155 homicides this year, a 48% increase over the same period last year.
On Tuesday, the police department announced that an outside organisation will review its response to the civil unrest that followed Mr Gray's death.
The US justice department is also conducting a civil rights review of the Baltimore force and Mr Batts has been criticised by the city's police union.
Earlier on Wednesday, the union released its report into the police handling of the rioting.
It said officers had complained "that they lacked basic riot equipment, training, and, as events unfolded, direction from leadership".
The report also said "officers repeatedly expressed concern that the passive response to the civil unrest had allowed the disorder to grow into full scale rioting".
Recent events had "placed attention on police leadership", Ms Rawlings-Blake said, but denied her decision was influenced by the union report.
Mr Davis, who is taking over immediately as interim police chief, praised his "friend" Mr Batts and said he was a "true reform commissioner".
Mayor Rawlings-Blake said Mr Davis would "bring accountability to police, hold officers who act out of line accountable for their actions".
A football anthem sung by England's 1966 World Cup winning side has been released after spending 34 years hidden in an Isle of Man attic.
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Three wards treating elderly patients have been closed at Llandough hospital in the Vale of Glamorgan after an outbreak of flu.
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Baltimore's mayor has sacked the US city's police chief, saying his leadership had become a distraction from fighting a "crime surge".