She was born on 7 June 1976 in C�rdoba, Argentina, and she resides now in New York City, at last information. Rivero's mother thought that she lacked the grace of a lady, and therefore enrolled her into a "ladies school". She made her modeling debut at the age of 14, when she worked in a local fashion show. An agent discovered the now mature and more ladylike stunner at age 16 in her hometown, and one year later, she got another break when she won the preliminary of the Elite Look of the Year contest in Argentina.