This is a comprehensive listing that highlights significant achievements and milestones based upon Billboard magazine 's singles charts, most notably the Billboard Hot This list spans the period from the issue dated January 1, to present. The Billboard Hot began with the issue dated August 4, , and is currently the standard popular music chart in the United States.

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Follow Billboard. All rights reserved. The first half of has posed many questions most of us never thought we'd have to answer in our lifetime, including: "What does pop mean in a world of self-isolation? The answer, of course, is yes. We've found that in times of quarantine and other crises, music is as meaningful as ever, even just as the soundtrack to such menial activities as doing the dishes, taking a walk around the block or just sitting at home and wondering when or if things will feel normal again. As difficult as this period has been, we doubt we could've gotten by without these songs -- and we look forward to making up for lost time with them at whatever point we're finally able to celebrate them publicly.
Best pop songs of all time
In the music industry , the top 40 is the current, 40 most-popular songs in a particular genre. It is the best-selling or most frequently broadcast popular music. Record charts have traditionally consisted of a total of 40 songs. The term "Top 40", describing a radio format , appeared in Its introduction coincided with a transition from the old ten-inch 78 rpm record format for single "pop" recordings to the seven-inch vinyl 45 rpm format, introduced in , which was outselling it by and soon replaced it completely in The Top 40 thereafter became a survey of the popularity of 45 rpm singles and their airplay on the radio. Some nationally syndicated radio shows, such as American Top 40 , featured a countdown of the 40 highest ranked songs on a particular music or entertainment publication. Although such publications often listed more than 40 charted hits, such as the Billboard Hot , time constraints allowed for the airing of only 40 songs; hence, the term "top 40" gradually became part of the vernacular associated with popular music.
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. Song Units Weeks at 1 3.