Mainstream Top 40 is a 40- song music chart published weekly by Billboard Rihanna shares the record with Katy Perry for the most number - one singles (with.
This is a list of the U.S. Billboard magazine Mainstream Top 40 number - one songs of Contents. [hide]. 1 Chart history; 2 See also; 3 References.
This week's most popular pop songs, ranked by mainstream top 40 radio airplay detections as measured Discover which song was # 1 the day you were born!. Avicii - Hey Brother