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Ding Dong The Witch Is Dead has rocketed to number one in the iTunes download chart following the death of Margaret Thatcher.

The Judy Garland version of the Wizard of Oz song hit the top spot last night following an online campaign by the Iron Lady's critics.

It had already reached the top spot on Amazon's sales charts on Tuesday night.

In the midweek Official Singles Chart it was listed at number 10 and is on course to be number one after selling more than 10,600 copies.

It missed out on a Top 3 spot by just 5,000 copies.

However, Radio 1 may not play Ding Dong The Witch is Dead if it makes the Top 40 in Sunday's Official Chart Show countdown.

Senior production staff will meet on Sunday morning before the chart show to discuss its content and make a decision on whether or not to play the song.

When asked if the station would play the track, a BBC spokesperson said: "The Official Chart Show on Sunday is a historical and factual account of what the British public has been buying and we will make a decision about playing it when the final chart positions are clear."

It's understood that if a decision is taken not to play the song it would have nothing to do with worries over offending people and instead would be due to "production reasons".

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While many mourned the former Prime Minister who died aged 87 on Monday, many others saw her death as a cause for celebration.

Members posted a link to the song and urged people to download it.

The song 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.

They sing it as they celebrate the death of the Wicked Witch of the East after Dorothy "dropped a house on her".

The song was written by E.Y. Harburg and composed by Harold Arlen.