Proof, if proof were needed, that Britney Spears has been spending too much time hanging about with Simon Cowell on the latest series of US X Factor.

Her video for new single 'Scream and Shout', a collaboration with the ever-tedious Will.i.am, features Britney singing in a weird approximation of a British accent. The line "All eyes on us", in particular sounds like Dick Van Dyke standing in for the Queen's Speech.

So why has Britney modified her natural Louisiana twang? Because Brits are cool, presumably. Definitely cooler than Will.i.am, anyway.

What do you think of Britney's Brit impression? Does she have her estuary vowels down?