Pop Airplay (also called Mainstream Top 40, Pop Songs, and Top 40/CHR) is a 40-song music chart published weekly by Billboard Magazine that ranks the most popular songs of pop music being played on a panel of Top 40 radio stations in the United States. The rankings are based on radio airplay detections as measured by Nielsen Broadcast Data Systems (Nielsen BDS), a subsidiary of the U.S.' leading marketing research company. Consumer researchers, Nielsen Audio (formerly Arbitron), refers to the format as contemporary hit radio (CHR).The current number-one song as of the chart dated February 11, 2023 is "Die for You" by The Weeknd.[1]
Radio Mydonose Top 40 Lis...
The chart debuted in Billboard Magazine in its issued date October 3, 1992, with the introduction of two Top 40 airplay charts, Mainstream and Rhythm-Crossover. Both Top 40 charts measured "actual monitored airplay" from data compiled by Broadcast Data Systems (BDS). The Top 40/Mainstream chart was compiled from airplay on radio stations playing a wide variety of music, while the Top 40/Rhythm-Crossover chart was made up from airplay on stations playing more dance and R&B music.[2] Both charts were "born of then-new BDS electronic monitoring technology" as a more objective and precise way of measuring airplay on radio stations. This data was also used as the airplay component for Hot 100 tabulations.[2] American Top 40 with Shadoe Stevens used this chart for their show from January 1993 to January 1995.
There are forty positions on this chart. Songs are ranked based on its total number of spins per week. This is calculated by electronically monitoring Mainstream Top 40 radio stations across the U.S. 24 hours a day, seven days a week by Nielsen Broadcast Data Systems.
Prior to 2018, the song with the most weeks on the chart was "I'll Be" by Edwin McCain, which spent 41 weeks on the chart in 1998. This record run held for almost two decades, but has been surpassed many times since then. Radio stations having more data points, such as streaming, to increase their accuracy at measuring what radio listeners want to hear, have made longer runs more commonplace.[26]
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