Pop Songs

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Mainstream Top 40 and HTZ of the World
Compiled by 246 Top 40 stations (September 2011).
Started: 02 February 2002 (Spins + Audience = Airplay) total detections
It surpassed the World Top 40 Singles chart in 2002. WT40 first charted on 13 April 1968 as being compiled by airplay and sales from particular stores (before soundscanning was invented). After scans were developed, The chart was seceded by HTZ Top 40 and Pop40 (Pop40, known as World Pop Songs is Airplay and Sales, but by total detections, not audience impressions). This, however, is not to be confused with…

top40-htz.webnode.com