Scientists Just Proved Patrick Star Right About Musical Mayonnaise

SpongeBob fans spent 25 years laughing at Patrick Star for asking if mayonnaise is an instrument.

Turns out he was asking a legitimate scientific question.

Now a real university study has delivered the official verdict – and Squidward owes that starfish an apology.

Is Mayonnaise an Instrument The Science Says Yes

Hellmann's – the 113-year-old mayo brand your mother put on every sandwich – commissioned researchers at Northumbria University to settle the debate once and for all.

Dr. Rachael Durkin, Head of Global Music Technologies at Northumbria University, led the study.

Her team applied organology – the scholarly field that defines what qualifies as a musical instrument – along with acoustics and musicology to evaluate mayonnaise against the same criteria used for conventional instruments.

Their conclusion: mayonnaise passes the test.

The key finding from the research is that instrument status has nothing to do with whether an object was purpose-built for music.

Organologists determine qualification based on an object's capacity to generate or alter sound through deliberate use – and mayo clears that bar.

The research also turned up something unexpected: depending on how you use it, mayonnaise doesn't fit neatly into just one instrument category.

Researchers applied the Hornbostel-Sachs system – the global standard for classifying instruments by the mechanism that produces sound – and found that mayo in a jar, mayo in a squeeze bottle, and mayo used without any container each behave acoustically in distinct ways, qualifying under separate classifications.

Most conventional instruments land in a single category.

Mayonnaise covers several.

SpongeBob Band Geeks Asked This Question 25 Years Ago

The scene that started all of this aired on September 7, 2001.

In the SpongeBob SquarePants episode "Band Geeks" – still the highest-rated episode in the show's history with a 9.8 on IMDb – Patrick Star raises his hand during Squidward's band rehearsal and asks his famous question.

Squidward shuts him down cold: "No, Patrick, mayonnaise is not an instrument."

He was wrong.

The meme lived on the internet for 25 years before Hellmann's decided to do something about it.

To bring the findings to life, the brand partnered with music creator Andy Arthur Smith – who has over 6 million followers across social platforms – to record an original track built entirely from mayonnaise-generated sounds.

The song is titled "Mayonnaise Is an Instrument" and it is available to stream right now.

"It's a question that's been around for years, but no one's really tried to answer it properly," Smith said. "Seeing people actually make music with mayonnaise and turning it into a real track has been wild."

Mayo Joins a Long List of Unlikely Instruments

This isn't as strange as it sounds – or maybe it is, and that's exactly the point.

Music history is full of moments where someone looked at an ordinary object and heard music in it.

John Cage spent decades doing exactly this – in 1940 he invented the prepared piano by jamming screws, bolts, and rubber into a grand piano's strings to create what he called a one-man percussion orchestra.

Vienna's Vegetable Orchestra has been making music from fresh produce since 1998 – leeks, carrots, pumpkins, whatever's at the market that day.

Both are taken seriously in concert halls around the world.

The science behind mayonnaise's classification comes down to its physical structure.

Because mayo is an emulsion – oil suspended in water through the binding action of egg yolk – it produces consistent, measurable acoustic properties rather than random noise.

Dr. Durkin put it plainly: "Music has always evolved through experimentation. When you look at the core principles of how instruments create sound, you realize the possibilities for unconventional materials are endless."

Northumbria University's full report is expected to be published shortly.

Until then, Patrick Star officially deserves an apology – and maybe a seat in the band.

Sources:

• Brooke Steinberg, "Yes, mayonnaise can be used as a musical instrument — a wacky new study proves it," New York Post, March 27, 2026.
• Jude Cramer, "Is mayonnaise an instrument? Researchers just gave us an answer," Fast Company, March 27, 2026.
• Hellmann's / Ogilvy, "Hellmann's Steps Into The World Of Music," Creative Salon, March 27, 2026.
• "Band Geeks," SpongeBob SquarePants, Nickelodeon, September 7, 2001.
• "Experimental musical instrument," Wikipedia, accessed April 1, 2026.