 On August 11 , 2009 , it was announced that the single would be released as a CD single at Wal @-@ Mart store locations in the United States , her first commercial single release physically since 2002 in the country . The CD single was released early at various Wal @-@ Mart store locations , however selling enough copies an entire week before its release date to debut at number one on the Billboard Hot Singles Sales chart , where it remained for four consecutive weeks on the chart . On October 15 , 2009 , " Obsessed " was certified Platinum by the Recording Industry Association of America ( RIAA ) , denoting shipments of over one million units . This marked Carey 's 12th platinum single , more than any other female artist in history . According to Nielsen SoundScan , " Obsessed " has sold over 1 @,@ 742 @,@ 000 copies in the United States as of July 2013 . On the Canadian Hot 100 , the song peaked at number 20 , and spent only four weeks within the singles chart . 
