Mary-Beth Maybell is a country music DJ for K Rose in the game Grand Theft Auto: San Andreas. She has married numerous times, and her marriages have ended with her husbands dying gruesom deaths; most, if not all she played a part in. She wears either pants or dresses, as she mentions wearing them interchangeably as well as mentioning the fact that she wears bloomers. She also has numerous children and broadcasts from Bone County, which is a desert region near Las Venturas. Mrs. Maybell is never seen in person, only heard on the radio. Sometimes, Mary-Beth puts a harmonica in her pants to make music, a talent she learned while in a women's prison.
During the course of her frequent marriages, she managed to give birth to 9 children, which some of them are going through puberty (Mary-Beth mentions one of them going through a "natural transition to womanhood"). The weirdest of her stories about her children came when Mary Ellen (probably the oldest of the 9 children) was born on a pool table and the players kept on playing.