|This article relies on references to primary sources. (July 2011)|
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.12
The music charts produced by Ultratop 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. All of the charts generated by Ultratop are published in three different languages: Dutch, primarily for the Flemish inhabitants of Flanders; French, primarily for the Walloons in Wallonia; and English.
In Flanders the most important charts are the Ultratop 50 singles and the Ultratop 200 albums. In Wallonia the most important charts are the Ultratop 40 singles and the Ultratop 200 albums (the Flemish and Walloon charts are separate). The rankings in all of these charts are based on record sales. The charts are broadcast on several Belgian radio stations, and on TV stations TMF in Flanders and Plug TV in Wallonia.1 In addition to the Ultratop charts, Ultratop also produces singles charts named "Ultratip"; these, too, are produced separately for the Flanders and Wallonia regions.
Ultratip (also referred to as "Tipparade") is a Belgian chart of commercially-available singles, with chart positions based on a combination of sales and airplay (i.e., the number of times a song is played on the radio or television, combined with the calculated audience size for a station, region or language).1 Two Ultratip charts are published weekly, the Ultratip 100  in Flemish markets and Ultratip 50  in Walllon markets. Ultratip differs from the Ultratop charts, in that Ultratip charts depend mostly on airplay, whereas Ultratop charts are based solely on sales; however, it should be noted that a song cannot chart on the Ultratip chart on airplay figures alone.3
Note: Ultratop's all-time singles record (at Ultratop) has been updated to combine the Ultratop data (from 1995 onwards) with the earlier official charts dating back to late 1954. Therefore the singles statistics here actually reflect a combination of charts that are successive but independent of each other.
- Longest numbler 1 single: "The Ketchup Song" by Las Ketchup; 17 weeks. "Pour que tu m'aimes encore" of Céline Dion held on for 15 weeks at that first spot.
- Longest single overall in the chart: "Con te partirò" of Andrea Bocelli; 52 weeks in the chart. "Obsesión" by Aventura stayed in the charts for 48 weeks.
- Number 1 hit that lasted the shortest on the chart: "Ensemble" by Solidarité Asie Tsunami 12-12. It left after 8 weeks total (out of which two weeks at number 1 spot).
- Songs that entered at number 1: "Candle in the Wind (1997)" by Elton John, "La Musique (Angelica)" by Star Academy (France), "On se Ressemble" by Mario Barravecchia and "Hold It Against Me" by Britney Spears.
- The strongest riser to the number one position was "Un enfant de toi" by Phil Barney and Marlène Duval. It rose from the 20th place to the first.
- "Ultratop Belgian Charts". Ultratop.be. ULTRATOP & Hung Medien / hitparade.ch. Retrieved 2010-05-31.
- "LINKS - Local record industry associations". IFPI. Retrieved 2010-05-31.
- "Ultratop Belgian Charts". Ultratop.be. ULTRATOP & Hung Medien / hitparade.ch. Retrieved 2011-08-23.
- "Ultratop Belgian Charts". Ultratop.be. ULTRATOP & Hung Medien / hitparade.ch. Retrieved 2011-09-23.
- Official Web site for Walloon charts (French, but English version available)
- Official Web site for Flemish charts (Dutch, but English version available)