What is top.40?

Top 40 refers to a music chart that ranks the current most popular songs in a particular genre or market. The term originated from the US pop music chart, which was originally called "Top 40 Radio." This chart ranked the 40 most popular songs from a particular market based on their airplay and sales figures.

Today, the Top 40 chart encompasses a wide range of genres including pop, hip hop, country, rock and electronic dance music (EDM). The chart is updated weekly, and the songs that make it onto the chart are determined by a combination of factors such as streaming numbers, radio play, and physical and digital sales.

The Billboard Hot 100 is one of the most well-known Top 40 charts. It ranks the top 100 songs in the United States based on their popularity and is published weekly by Billboard Magazine. Many radio stations, music streaming services and advertisers use the Top 40 chart to determine the most popular songs of the moment and to promote new artists.