"Womanizer" best selling Britney song in US

Forget what you think you know about Britney's biggest selling singles like "Slave 4 U" and "Gimme More."

"Womanizer" has just become Britney's best-selling-single in the U.S. having sold more than "Baby One More Time" (1 million) and "Toxic" (500 thousand), according to NYpost.com!

10 months after "Womanizer" debuted it is still charting and currently at #279 on iTunes while ‘Circus’ charts at #121.