But the design is so classic that it's super easy to find without resorting to dropping major cash for the Tom Ford original!
We found two equally affordable options that are super similar to Kate's dress.
Check 'em out ...AFTER THE JUMP!!!
That dress is Roaring on the red carpet!
We adore us some Katy Perry, and we can never get enough of her red carpet looks…even when she channels her inner ballerina!
While not every singer could rock that cray cray dress, Katy's funzie personality is the perfect fit with this fairytale-like dress.
With her hair up in a fancy lil' bun, she looks ready to twirl her way through the night! And we're totes jelly!
[Image via Getty Images.]