Canadian charts are not the same as Billboard charts The Canadian Singles Chart is based on CD single sales and nothing more The Canadian BDS Airplay Chart is a very wellknown chart because its one of the only radio charts that does not use recurrent play to remove songs which means that Promiscuous could reenter in ten years time Im surprised that Canadian charts are being treated exactly like Billboard charts but they are very different for example the Canadian Dance Chart is not as well known as the airplay chart but its still in the article This is likely because its being used in the same way but thats not right Here it was claimed that nonCanadians should not include the airplay chart if their single did enter the Canadian Singles Chart However because its clearly notable and because Furtado is Canadian its use here is appropriate