Rianna Giammarco was born in Burbank, California. She has been a performing artist since the age of six years old. She studied acting, piano, voice, and is a trained dancer. During her preteen years, Rianna performed in many community musical theater and dance productions, as well as attended theater and dance lessons while finishing her high schooling. In her spare time she was a dance assistant at a local studio. At sixteen years old, in a brush with fate, she was approached and cast to host a local television station commercial. After this experience, Rianna decided to seriously pursue acting in the television and film industry. After moving closer to Los Angeles, she booked her first role on "The Bold and the Beautiful" (1987) within weeks. It soon became the teen recurring role of "Jane". During the 1998 through 1999 year, she followed with a guest star role on "Beverly Hills, 90210" (1990) as "Esme", a molested teen. It was also Luke Perry's directorial debut. Rianna was then cast on MTV's "Undressed" (1999) as the recurring role of "Sabrina", a high school ice-queen. In 1999, the #1 Daytime Drama, "The Young and the Restless" (1973) began to develop a teen section and Rianna was cast as one of the very first teens on the show. Although she was cast as a nameless under-five, her character soon evolved and was quickly written into the storyline as "Rianna Miner". Originating the role, and with the character name being of no coincidence, "Rianna Miner" became a contract role on September 9, 2000 when Rianna was recast. With her one and a half year run on Y&R, Rianna learned a great deal about the business and loved the experience of being written into a show. In early 2000, Rianna booked a highly sought-after Pepsi commercial spot with mainstream music sensation, Ricky Martin. In 2002, she was cast on MTV's "The Andy Dick Show" (2001) , "American Family" (2002), and Nickelodeon's _"All That" (1995)_ . Rianna presently studies with acclaimed acting coach, John Homa, as she continues to pursue new projects.