The line comes from Eminem's The Real Slim Shady, released in 2000 as the lead single from The Marshall Mathers LP. In the song, Eminem introduces himself as the real Slim Shady and asks the audience to pay attention before the beat drops. The opening became one of the most quoted parts of the track and has been reused in countless memes, edits and reaction videos online. Its simple, direct wording makes it easy to repurpose for any entrance, announcement or impersonation, which keeps it familiar to new audiences years later.