Families of Hillsborough victims will get extra money from sales of a charity single after Chancellor George Osborne confirmed he would effectively waive VAT on it.
The version of the Hollies' hit He Ain't Heavy, He's My Brother by The Justice Collective is being sold to help cover their legal costs.
An official announcement came after a High Court ruling which quashed the original accidental death verdicts returned on the 96 who died and ordered a fresh inquest.
The song features artists like Paul Heaton, Sir Paul McCartney, Robbie Williams, former X Factor star Rebecca Ferguson and Spice Girl Mel C.
Mr Osborne said: "These families have been campaigning for justice for almost 24 years. It's been a long journey so I'm pleased to be able to say the Government will effectively waive the VAT on sales of the Hillsborough single, ensuring that as much money as possible goes towards helping these families."
Meanwhile, it emerged the single has has nudged ahead of X Factor winner James Arthur in the race for the Christmas number one. Arthur took a surprise early lead on Tuesday in a tight battle for the festive top spot by a margin of just 3,000 copies.
However, the star-studded Hillsborough track now has the edge with a 3,400 lead. It has now sold around 109,700 copies, to Arthur's 106,300, according to figures from the Official Charts Company.
In a celebrated battle for the top of the charts in 2009 Rage Against The Machine's Killing In The Name and Joe McElderry's The Climb were in a tight race but the two records were at least 8,000 sales apart during the week and the rock act finally finished 52,000 copies ahead.
Official Charts Company managing director Martin Talbot said: "This really is the closest number one battle we can remember. There is a long way to go yet - but this one looks like going down to the wire."
The number one will be revealed during the chart countdown on Sunday on Radio 1.