Britney Spears Recording New 'Dirty Girl' Song

Britney Spears is working on a new song titled 'Dirty Girl', according to her producer.

The singer recently made it known that she had been squeezing into the studio in between gigs recently on her 'Circus' world tour, to record new material.

Producer Russ Castella gave away news of one such song on Twitter, when he told followers: "Working on the new Britney track... but shhhh it's supposed to be a secret."

"The new Britney track is called 'Dirty Girl' and its gonna be realllllyyyyy dirty." He further explained.

It's presumed 'Dirty Girl' will feature on Spears' forthcoming greatest hits collection, due out later in the year.

A few weeks back, it was confirmed the 'Womanizer' star had been in the studio with her longterm collaboration Max Martin.