She's 7-years-old and she lives in Utah.
Earlier this year, over the course of just a few weeks, ALL of Gianessa's hair fell out.
When her parents took her to a dermatologist, they was told that Gianessa had alopecia, and that her hair would not grow back. (Alopecia is an autoimmune skin disease, that causes hair loss on the scalp, face and body.)
Gianessa, as you can see, without hair or not, is an adorable little girl, and when her mom got word that her school was doing 'Crazy Hair Day', she didn't want Gianessa to miss out telling CNN:
"I didn't want her to feel like an outcast or that she wasn't like the other kids."
So mom got a bunch of stick-on jewels and bejeweled and bedazzled Gianessa's adorable bald head.
The result was FABULOUS! So fabulous that Gianessa won the entire competition!
Gianessa's mom says the little girl knows her hair won't grow back, but she's not fazed at all and is embracing her baldness.
Way to go Gianessa and mom!