Belgium Singles Chart

Ultratop is an organization which generates and publishes the official record charts in Belgium, and it is also the name of most of those charts. Ultratop is a non-profit organization, created on the initiative of the Belgian Entertainment Association (BEA), the Belgian member organization of the International Federation of the Phonographic Industry. Two parallel set of charts are concurrently produced and published, one on behalf of Belgium's Dutch-speaking Flanders region, and the other catering to the nation's French-speaking region of Wallonia.

The music charts produced by Ultratop organization are separated along regional-language boundaries, an unusual division that is justified by the cultural differences in Belgium. So it is that the Dutch-speaking Flanders region has one set of charts of record activity there, while the French-speaking Wallonia region has another set to measure popularity in those provinces.

The charts are broadcast on several Belgian radio stations, and on TV stations TMF in Flanders and Plug RTL in Wallonia.

Ultratop creates charts based on record sales of around 500 retail outlets and legal digital downloads. Currently GfK is the market observer of the charts. The chart broadcasts on Radio Contact on Saturdays from 12:00 to 14:00. The combined number of Ultratop chart listeners on the various radio or TV stations exceeds two million every week. To celebrate the 10th anniversary of the charts in 2005, a jubilee book was published. It covers all 15,282 singles from 5,882 artists thus far.

The Flemish Ultratop 50 chart has existed since 31 March 1995. Prior to 1995, the official weekly chart was the Radio 2 Top 30 (previously known as the BRT Top 30) broadcast by the Belgische Radio- en Televisieomroep (BRT) and subsequently by the Belgische Radio- en Televisieomroep Nederlandstalige Uitzendingen (BRTN) - a chart which continues to be broadcast to this day by the BRTN's successor, the Vlaamse Radio- en Televisieomroeporganisatie (VRT) (hence its alternative name, the VRT Top 30). The Ultratop 50 chart is compiled in Dutch and presented on the Belgian radio station MNM as well as on TMF Flanders television.

...
Wikipedia