YOUNG HOLLYWOOD TV
Spears sold over 411,000 downloads of the track in the week since its release - the highest ever for a female artist, breaking the record of 325,000 digital sales set by Taylor Swift's Today Was A Fairytale last year (10).
Hold It Against Me came in at number one, followed by Bruno Mars' Grenade at two and Katy Perry's Firework at three.
The top five is rounded out by Rihanna and Drake with What's My Name? and Wiz Khalifa's Black And Yellow.