Baroness Thatcher's death could see the 1939 song Ding Dong The Witch Is Dead propelled into the top 40 of the singles chart.
In the space of less than 12 hours the song, from the classic film The Wizard of Oz, had made it to number 54 according to the latest sales figures collated for the Official Charts Company.
The late former Prime Minister, who died on Monday, divided opinion and while many have mourned her death, some have seen her passing as a cause for celebration prompting a download surge for the track.
Baroness Thatcher's death could propel The Wizard Of Oz track Ding Dong The Witch Is Dead into the top 40 of the singles chart
It is expected to climb higher as a result of a Facebook campaign being set up to encourage sales.
It features in the 1939 musical The Wizard of Oz and is sung by Dorothy, played by Judy Garland, the Munchkins and Glinda the Good Witch, played by Billie Burke.
There has been some speculation that it may be too short to qualify at just 51 seconds, but chart bosses say it is eligible.
In the space of less than 12 hours Judy Garland's version had made it to number 54
In 2007 the track The Ladies Bras by Wisbey made the chart despite lasting just 36 seconds.
Garland's version is not the only one to be selling. A performance by Ella Fitzgerald is at 146 and one by the Munchkins is at 183.
If sales of the three versions had been combined it would be selling strongly enough to be at number 40.
The Official Charts Company will release its midweek sales tomorrow to give an indication of whether it is continuing to sell and the top 40 itself will be announced on Sunday.
Garland's version is also at number 16 in the iTunes chart today.
It comes as violence erupted on the streets at special 'death parties' held to celebrate the passing of Baroness Thatcher.
It has raised security concerns about next week’s funeral, with increasing fears that militant groups, anti-austerity protesters or even dissident Irish Republicans might try to disrupt the occasion.
One police source said senior officers had initially been ‘quite relaxed’ about the operation to protect Wednesday’s farewell to the former prime minister, but had hardened their view as disorder broke out.
The funeral at St Paul’s Cathedral now looks likely to present a security challenge unparalleled since the funerals of Diana, Princess of Wales in 1997 and Sir Winston Churchill in 1965.