Best-selling singles worldwide
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The world's best-selling single cannot be listed officially, since there is no international body to count global record sales. Historical data before the 1980s and from developing countries are also incomplete. Information is also lacking for non-English language albums.
One of the main reference sources for global sales is United World Chart where they combine airplay with sales to derive their best sellers. According to their website, 49% of their figures are from airplay. [1], therefore all their figures have been amended by a factor of 49% to determine actual sales.
Singles are listed in alphabetical order of the artists name, rather than singles sold. Groupings are based on different sales benchmarks. Multiple entries from the same artist are listed in chronological order: