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!!!
The singer brought down the house at the We Can Survive concert presented by AMP Radio at the Hollywood Bowl on Wednesday night, performing songs off her new album dressed in a kaleidoscopic schoolgirl-esque outfit!
Her playful ensem featured an iridescent crop top with matching flare skirt and platform boots, all by UNIF, worn with bright white knee socks.
A high ponytail and adorable smile completed the look. Let's just call her psychedelic Barbie, shall we? Ha!
[Image via Gabriel Olsen/Getty Images.]