The Toxic hitmaker
The track was rush-released after it leaked online.
Britney Spears' last hit, Hold it Against Me, debuted at number one on the Hot 100 countdown seven weeks ago.
Meanwhile, the pop world's new queen Lady Gaga scores a fourth week at the top of the charts with Born This Way.
Cee Lo Green's F**k You (Forget You) holds at two for a third consecutive week, while Rihanna rounds out the new top three with S&M.
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