Single teen mom Bristol Palin, the daughter of former vice presidential candidate Sarah Palin, will make her acting debut on a television show that centers around a teen pregnancy, the Disney-owned ABC Family channel said on Tuesday. Bristol, 19, whose pregnancy caused a stir during her mother's 2008 campaign, will play herself on the popular drama series “The Secret Life of the American Teenager.” The episode will shoot in Los Angeles and air in the US summer when the series returns for its third season. On the TV show, Bristol will play herself as a friend of the show's 16-year-old protagonist, Amy, who juggles motherhood and high school. Despite lukewarm reviews when it started in 2008, the drama is one of the most popular youth shows on US television.