The new list, which ranks songs' popularity by blending digital track sales measured by Nielsen SoundScan with radio tracking from Nielsen BDS, bows today (June 7) on Billboard.com and Billboard.biz.

One of Billboard's franchise charts expands north of the border this week with the launch of the Billboard Canadian Hot 100. The new list, which ranks songs' popularity by blending digital track sales measured by Nielsen SoundScan with radio tracking from Nielsen BDS, bows today (June 7) on Billboard.com and Billboard.biz.

Effective this issue, the top 10 from the new Canadian Hot 100 will appear in the magazine's Hits of the World pages. SoundScan's Canadian Digital Songs chart, which has appeared in magazine since March of last year, will continue to appear on Billboard.biz. All 100 titles on the new chart will appear on both Web sites.

The Canadian Hot 100 emulates the formula that drives The Billboard Hot 100, which has mingled sales and radio data since its launch in 1958. Along with SoundScan's digital sales data, the new chart is driven by BDS' Canada All-Format Airplay, with a panel of more than 100 radio stations. The comprehensive radio panel includes the country's leading top 40, rock, country and adult contemporary stations.

Rihanna has the honor of the chart's first No. 1 with "Umbrella," featuring Jay-Z, the song that is currently in its second week at No. 1 on the original Hot 100. Canadian acts found in the inaugural chart's top 20 include Finger Eleven, Nelly Furtado, Michael Buble and Avril Lavigne.

The Billboard Canadian Hot 100 is managed by Paul Tuch, director of Canadian operations for Nielsen BDS, in consultation with Silvio Pietroluongo, Billboard's associate director of charts and manager of the Billboard Hot 100.