Now, she's hoping to turn it into a real career.
'"It was everywhere. I was like, 'What is happening? I don't understand!'" Anna Faith laughed.
It started with one picture. Once it went viral, there was no turning back.
Faith turned her prom dress into a costume from "Frozen."
Now, she's been keeping busy at birthday parties, elementary schools and hospitals. She even went to Downtown Disney in her Elsa outfit and was mobbed. She says security asked her to stop signing autographs.
Anna just graduated from high school and hopes all the attention will turn into a career in the entertainment industry.
"It's a really good opportunity," she said. "This can lead to so many other doors, they see that I am an actress, I'm good with kids and that I love signing, so this could really lead to other jobs that I have in the future."