The 'Guess Who's Back' meme originates from the 2002 music video for Eminem's hit single 'Without Me.' In the video, Marshall Mathers (performing as Eminem and his alter-ego Slim Shady) creates a high-energy intro featuring the iconic line 'Guess who's back, back again / Shady's back, tell a friend.' The scene is characterized by its repetitive, rhythmic zoom and Eminem's playful yet defiant energy as he re-enters the pop culture spotlight. In internet culture, this clip is the definitive template for announcing a triumphant or unexpected return. It is used to represent feelings of confidence and the dramatic flair of a grand re-entrance into a social circle, a video game lobby, or a professional setting after a long absence. Example captions include: 'Me returning to the group chat after three months of lurking,' 'The forgotten character in the season finale,' and 'My motivation returning for exactly five minutes.'