The story would likely have faded into private roadie memory if not for Frank Zappa. Zappa, who stayed at the Edgewater Inn shortly after the incident, caught wind of the story from hotel staff and local musicians. Fascinated by the absurdity of rock excess, he turned the rumor into a live theatrical performance.
During a June 1971 concert at the Fillmore East in New York City, Zappa and the Mothers of Invention debuted "The Mud Shark." Featuring Flo & Eddie (Howard Kaylan and Mark Volman) on vocals, the track framed the Seattle hotel fishing scene as a fictional counterculture dance craze:
"The Mud Shark dance is arising! Out of the waters of Puget Sound... what's that coming up from the bottom? It's a mud shark!"
The album Fillmore East, June 1971 reached millions of listeners, cementing the phrase "mud shark" in the vocabulary of 1970s counterculture. Zappa treated the event as a biting satire of touring rock bands and their sycophants. Yet by codifying the moniker on vinyl, he ensured the Seattle incident remained permanently attached to classic rock lore.