 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 . 
