The Official Charts Company has revealed that an “error” was made when calculating last week’s music charts.
The official top 40 singles and album charts, which are announced on BBC Radio 1 between 4pm and 7pm, were reported inaccurate for the week ending December 26 by market researchers Millward Brown after faulty software affected the chart position of a number of songs.
A message posted on Radio 1’s website reads: “Last night, Millward Brown, the market research company currently contracted by the Official Charts Company to collect sales data, discovered a bug in the weighting software used to compile the charts, which has affected a number of positions in the charts published on Sunday December 26.
“As a result, the OCC has decided to re-run all of this week’s Official Charts. In relation to the Top 40 Singles and Albums Charts, the errors are minimal.”
The updated chart has since been published, with the X Factor finalists’ single ‘Heroes’ dropping four places from 18 to 22.