What is Jamster Favorite Bad Girl?

Jamster does not appear to be directly related to a favorite bad girl. However, based on the search results, there is a Jamster TV spot that asks, "Who's your favorite bad girl?" in one of their commercials. This suggests that Jamster might have used the concept of a "bad girl" in their advertising campaign, but without further information, it is difficult to determine the specific context or characters associated with it.