So there's this new performer taking the entertainment world by storm. She's gorgeous, she's talented, she's got tons of fans... and she's not real. Well, not a flesh-and-blood human, anyway (whether that makes her not real is sometimes debatable). She's some sort of program or AI, created specifically to be an actor, Idol Singer, or what have you. Most often her artificial nature will be concealed from the world, though there's the occasional Cyberpunk or Post Cyber Punk setting where celebrities (sometimes, all celebrities, or at least the majority) are known to be virtual and nobody cares.