Watch out Posh - Beyonce Knowles wants to take you and your dVb fashion empire on.

It seems the next focus for Beyonce's own House of Dereon brand will be eyewear, a move which is said will directly impact the sales of Victoria Beckham's recently released dVb sunglasses collection.

Bootylicious singer Beyonce, who runs the brand along with her mother Tina, will venture further into accessories territory with Tina telling media: "I can't wait for jewellery and sunglasses because we're just accessories people."

Let the battle of the sunnies begin!