Last year, Katy Perry married an Englishman (Russell Brand) -- and she was primed and ready to mock England's most famous sisters as guest host on Saturday Night Live's all-new episode over the weekend.

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In the royally-inspired skit, Kate Middleton (played by Nasim Pedrad, who spoofed Kim Kardashian in several skits) gets grilled by Queen Elizabeth (Fred Armisen) and Prince Phillip (Bill Hader) for failing to get pregnant with a royal heir eight months after the royal wedding.

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After Elizabeth and Phillip get downright vulgar with defenseless Kate, the Duchess gets an assist from another palace visitor: scene-stealing sister Pippa, played by Perry, 26!

As the stylish bachelorette with the famous derriere, Perry reveals a new side to Pippa: trash-talking, cockney-accented brawler!

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Check out Perry's Pippa impersonation now in this skit.

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