The “Firework” singer wore a tiny, original dress with Smurfette’s face on it.

Katy Perry was the queen of the premiere of the new “Smurfs” movie, which was held this Sunday at the Ziegfeld Theater in New York.

Katy not only changed her look by sporting blonde hair, but she also put on an original, tiny, sparkly dress with Smurfette’s face on the front of her dress.

But something happened that was coming, judging by the tiny dress. A wrong move by the “Firework” singer revealed her underwear, to the delight of the photographers who kept snapping away.

To enlarge the photos, click on them.