Josie was born in Miami, Florida, and is of Cuban descent. Before she went to, she used to cheer for an all-star cheerleading team in Miami called Top Gun All Stars. She studied at UCLA. Her mother is Mercy Lopez, a middle school teacher at Zelda Glazer Middle School in Miami, Florida. She attended high school at New World School of the Arts in Miami where she studied stage acting. In college she is studying Mass Media Communication and getting a minor in Spanish. She has one older sister (Jessica) and two brothers (Asís and Javier). Her older brother, Javier Lopez, is a Harvard University graduate and a commercial litigator in Miami. In 2010, she was voted one of the 50 Most Sexiest Singles by OK! magazine.