Is the Duchess of Cambridge a Cockney? An 11-year-old Kate Middleton gives the working-class accent her best shot in this recently unearthed video of the schoolgirl starring in a production of My Fair Lady at her posh private school, The Sun reports. "The rain in Spain falls mainly on the plain," we hear her utter before refining her accent while in character as Eliza Doolittle, the flower girl Professor Henry Higgins rescues, trains and then passes off as an English aristocrat.Middleton, now 32, was apparently a hit: the audience can be heard encouragingly laughing as the future princess delivers her lines.