Rebecca was born in Hazard, Kentucky on the 12th Of August 1972. Her nickname is "The Noxzema girl" and her hight is 5'8".

On 13 June 2001, Gayheart struck 9-year-old Jorge Cruz Jr. as he jaywalked across the street. According to the police report, the boy was walking home from school, and crossed the street about 160 feet from the nearest crosswalk. While several cars stopped to let him go, Gayheart allegedly swerved around the traffic and into a two-way left-turn lane, striking the boy; he died the next day at Los Angeles Children's Hospital. His parents, Jorge Cruz and Silvia Martinez, filed a wrongful-death lawsuit on 6 August 2001 against her. Gayheart paid for Cruz's hospital and funeral expenses.

But that incident all her commercials on TV and adds on magazines terminated but she lost all current and future contracts with companies whom were planning to hire her as their poster woman.

Rebecca's Movie filmography is impressive. Starting her carrer in the short student movie "Whatever Happened to Mason Reese" in 1990, Rebecca has enjoyed many roles. Including Roles in the hit horror's "Scream 2", "Urban Legends" and "Urban Legends 2". Recently Rebecca has had title roles in "Pipe Dream", "Jawbreaker" and "Harvard Man".