I only recently found out Lip Sync Battle was its own show and not a segment on The Tonight Show with Jimmy Fallon. I was bewildered. Then I found out LL Cool J hosted it and was even more perplexed. And then Kaley Cuoco was on it, blazing up the screen with a down-to-the-last-detail performance of the Britney Spears jam “I’m a Slave 4 U,” and now the world makes sense.

If you don’t recall the tune, then you’re either amish or legally not allowed to buy smokes. It was played at every house party, whether in the real world or in movies, for like a decade. Now it’s back with an insanely sensual vengeance because the only reason to ever, even briefly, watch an episode of The Big Bang Theory decided to make us dudes all paw the screen like zombies trying to get brain.

She also very kindly posted behind-the-scenes shots.

And here’s said babe, made of sunshine, just out in the world.

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