# Pennywise Dancing

> Fans replaced Pennywise's dance music in a clip from the 2017 film It.

- Owner: null
- Kind: Meme & format
- Sector: Entertainment
- Seed date: 2017-09-08
- Peak date: Week of Sep 22, 2017
- Date basis: Dates use the stated precision; chart positions are date anchors.
- Spread Score: 55 (Notable), v1.2
- Mechanics: Remixable template, Response chain, Creator relay, Platform jump, Press loop

## Summary

The song-swap account inserted Mambo No. 5 into a months-old King–Sagal conversation, giving the remix a conversational punchline. Native metadata preserves the reply and 15.4-second video. A later report counted 27 videos from the same curator, alongside other creators’ remixes.

## Timeline

- 2017-09-08 — Warner Bros. (Box office) — Warner Bros. released It in domestic theaters; its dance scene later supplied the remix footage.
- 2017-09-08 — MAFDOMiNUS (YouTube) — MAFDOMiNUS posted the dance clip with SpongeBob's Best Day Ever, the earliest dated remix in KYM's account.
- Week of Sep 8, 2017 — It audiences (Box office) — The parent film's domestic opening weekend reached $123.4 million; the gross was not attributed to the meme. (123.4M $123.4M parent-film opening)

The full timeline, metrics and sources are on the case page, or via the Pro API (https://howitspread.com/developers).

Canonical URL: https://howitspread.com/cases/pennywise-dancing

Cite as: How It Spread (2026). “Pennywise Dancing.” Case HIS-00338. Spread Score v1.2: 55/100. Updated 2026-10-12. https://howitspread.com/id/HIS-00338