Polow Da Don Working With Britney

Polow Da Don who frequently works with Sean Garette is signed on board to work with Britney as well: "Now working with 50 Cent, Nicole Scherzinger, R. Kelly, and Britney Spears, as well as with his own artists Rich Boy and Keri Hilson"

He has done this: Fergie "London Bridge","Glamorous". Co-Produced: The Pussycat Dolls Buttons"

Source: complex.com