The Pussycat Dolls are back on the music scene with their second album.

Doll Domination is the follow-up to 2005's PCD and features collaborations with top stars like Timbaland and R Kelly.

The five members, who've been compared to the Spice Girls, believe their music is the epitome of girl power.

Nicole Scherzinger said: "It's always coming from a strong place, being spoken from a strong place, a very confident place."

The Pussycat Dolls kick off their world tour in January 2009.

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