Brittany Murphy

Brittany Murphy is a well-known actress and singer who provided the voice of Colleen in The Beast with a Billion Backs.

Prior to this, Murphy provided the singing and speaking voice of Gloria the penguin in Happy Feet. She's also the voice of Luanne in King of the Hill. She's also appeared in such movies as Uptown Girls, Sidewalks of New York, and Drop Dead Gorgeous.