Jessie J Performs on Saturday Night Live: Watch Now!

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While host Zach Galifianakis dressed up like Annie and shaved his head into a mohawk, this weekend's Saturday Night Live musical guest didn't take such drastic steps.

Instead, 22-year old British sensation Jessie J became the first artist to ever appear on this big stage prior to releasing an album, introducing herself to American viewers with a pair of performances: “Price Tag" and Mama Knows Best," the former of which featured B.o.B.

Tweeted Jessie after her performances: “I am so in a space of ‘omg wow’ right now... Thank you for believing in me :) USA I’m coming for ya."

Watch the singer in action now and sound off: Are we looking at Great Britain's next major import?

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