Antonia Clara Castellano (born 12 April 1989), commonly known as Antonia, is a Romanian singer, performer, and model.

From the age of five years she lived with her parents in the United States. Antonia lived and grew up in Utah and the city of Las Vegas in Nevada, where she finished high school and got into the modeling world. She has participated in hundreds of photo shoots for catalogs while working with large agencies in the U.S., such as Lenz and Ford Models. Likewise, she has launched her own clothing line called MOJA.