The Billboard Hot is the music industry standard record chart in the United States for songs, published weekly by Billboard magazine. Chart rankings are based on sales physical and digital , radio play , and online streaming in the United States. The weekly tracking period for sales was initially Monday to Sunday when Nielsen started tracking sales in , but was changed to Friday to Thursday in July This tracking period also applies to compiling online streaming data. Radio airplay, which, unlike sales figures and streaming, is readily available on a real-time basis, is tracked on a Monday to Sunday cycle previously Wednesday to Tuesday. As of the issue for the week ending on August 8, , the Billboard Hot has had 1, different number one entries. The chart's current number-one song is " Cardigan " by Taylor Swift. Prior to , Billboard ' s lead popularity chart was the Honor Roll of Hits , established in This chart ranked the most popular songs comprised by record and sheet sales, disk jockey, and juke box performances as determined by Billboard ' s weekly nationwide survey. Although officially all three charts had equal "weight" in terms of their importance, Billboard considered the Best Sellers in Stores chart when referencing a song's performance prior to the creation of the Hot
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The Billboard charts tabulate the relative weekly popularity of songs and albums in the United States and elsewhere. The results are published in Billboard magazine. Billboard biz, the online extension of the Billboard charts, provides additional weekly charts,  as well as year-end charts. The charts can be ranked according to sales, streams, or airplay, and for main song charts such as the Hot song chart, all three data are used to compile the charts.
The Rolling Stone Top is a song chart that ranks popular songs from today's most popular artists. Songs are ranked by Song Units, a number that combines audio streams and song sales using a custom weighting system. The song chart does not include any passive listening, such as terrestrial or digital radio. The Rolling Stone Top Song chart is updated daily, and each week Rolling Stone finalizes and publishes an official version of the chart, covering the seven-day period ending with the previous Thursday. Beta Back to All Charts. Monthly Trend NEW! Song Units Weeks at 1 1. Weeks on Chart 1. Record Label Republic.