Eddie Munson's "This Is Music!" is a line shouted by the character Eddie Munson, played by Joseph Quinn, in the eighth episode of Stranger Things season 42. In the scene, the group ransacks Eddie's tape collection hunting for something pop-ish and recognizable, and Eddie snaps back that his metal cassettes absolutely count1.

Online, the moment split into two parallel formats. On TikTok, the audio clip powers skits where creators cut through examples of "not music" before landing on an absurd punchline they insist is real music2. On Facebook and Reddit, stills of Eddie clutching a cassette got turned into an exploitable, with the tape's cover art swapped out for whatever album the poster wants to defend3.

For the TikTok audio version, creators typically set up a fake debate about what counts as music, then cut to a punchline pick, an unexpected soundtrack, a franchise's discography, or a non-music object entirely, timed to Eddie's shout. For the exploitable, the common convention is to keep the still of Eddie holding up the cassette and Photoshop a new album cover, book, or logo onto the tape to co-sign whatever the poster is defending.