OMG! Katy Perry wears colour changing lighting-up dress

Katy Perry’s dress may look normal, but watch out she’s about the flash you!

Check out the photos below to see Katy’s dress light up!

Katy wore the amazing frock to New York’s annual Met Ball.

At first glance Katy looks quite demure, but when the lights go out the thousands of LED bulbs work their magic.

Katy said of the dress: “Sometimes in fashion it can get a little stuffy. I wanted to lighten it up.”

Lighten it up, we get it.

She teamed the CuteCircuit dress with a pair of Christian Louboutin shoes and we think she looks amazing!

We’d love to see her marry Russell Brand wearing something similar!