Brittany Anne Murphy-Monjack (November 10, 1977 ? December 20, 2009), known professionally as Brittany Murphy, was an American actress and singer. She starred in films such as Clueless; Just Married; Girl, Interrupted; Spun; 8 Mile; Uptown Girls; Sin City; Happy Feet; and Riding in Cars with Boys. She voiced Luanne Platter on the animated TV series King of the Hill. Brittany Murphy died of pneumonia in 2009. Her final film, Abandoned, is expected to be released in April 2010.