 On November 17 , 2007 , " Piece of Me " debuted at number sixty @-@ five on the U.S. Billboard Hot 100 . On February 9 , 2008 , the song peaked at number 18 . It was the second consecutive single from Blackout to reach number one on the Billboard Hot Dance Club Songs chart . The song shipped over 1 @,@ 000 @,@ 000 copies in the United States , earning a platinum certification by the Recording Industry Association of America ( RIAA ) . As of March 2015 , " Piece of Me " has sold 1 @.@ 9 digital downloads in the United States according to Nielsen SoundScan . It is her sixth best @-@ selling digital single in the country . In Canada , the song entered the Canadian Hot 100 at number thirty @-@ seven on November 17 , 2007 . On April 26 , 2008 , it reached its peak position of number five . " Piece of Me " was certified platinum by the Canadian Recording Industry Association ( CRIA ) for paid digital downloads of 40 @,@ 000 . 
