 In the United States , the song entered the Billboard Hot 100 at number ninety @-@ six on the issue dated October 8 , 2008 . The following week , the song jumped to number one breaking the records for largest jump to number one and largest jump to any position in the history of the chart , previously held by T.I. ' s " Live Your Life " ( feat . Rihanna ) and Beyoncé and Shakira 's " Beautiful Liar " , respectively . The record was later broken by Kelly Clarkson 's " My Life Would Suck Without You " . It also garnered first @-@ week download sales of 286 @,@ 000 , the biggest opening @-@ week tally by a female artist since Nielsen SoundScan began tracking digital downloads in 2003 , surpassing the record previously held by Mariah Carey 's " Touch My Body " . The record was broken on January 27 , 2010 by Taylor Swift 's " Today Was a Fairytale " . " Womanizer " was Spears ' first number one single since her debut " ... Baby One More Time " in 1999 . On the week of January 3 , 2009 , the song reached number one on the Billboard Pop Songs and number six on Radio Songs . As of July 2009 , " Womanizer " was listed at number thirty @-@ nine in the best selling digital songs of all time , with sales over 2 @,@ 777 @,@ 600 . As of March 2015 , " Womanizer " has sold 3 @.@ 5 million digital downloads in the United States , according to Nielsen SoundScan . It is Spears ' best @-@ selling digital single in the country . 
