 The song made its first ever chart appearance in Canada, where the song debuted at number sixty-seven on the Canadian Hot 100. It ascended the chart for numerous weeks before attaining the number one position on the week ending November 21, 2009. The song remained atop the chart for two weeks before falling to the number two position, being dethroned by Lady Gaga's, "Bad Romance". "Tik Tok" regained the number one position weeks later on January 2, 2010, and held the top spot for seven weeks, giving the single nine weeks atop the chart in total. In 2009 the song was the year's seventy-sixth best charting song and it was 2010's second best charting song on the Canadian Hot 100 Year End Charts. The single has been certified 7 × Platinum by the Canadian Recording Industry Association (CRIA) for sales of 560,000 units.
