Katy Perry Channels Pippa Middleton on SNL

Owner of perhaps the world's most famous cleavage, Katy Perry portrayed the owner of the world's most famous backsides last night in Pippa Middleton.

The #1 pop hit maker hosted NBC's Saturday Night Live, playing herself, Christina Aguilera, a Japanese wannabe and Kate Middleton's sister in various sketches.

In a nod to the many Kate Middleton pregnancy rumors of late, the Queen (played by Fred Armisen) demanded Prince William's wife get knocked up ASAP.

Enter the faux Pippa Middleton, who went toe-to-toe with Her Majesty in a ridiculous cockney accent. Give Katy credit for trying if nothing else. Peep it:

Katy Perry as Pippa Middleton