Get All Access for $5/mo

'Smoking Gun' Evidence Could Eradicate Copyright Claims for the World's Most Popular Song 'Happy Birthday,' which reportedly generates $2 million per year for the Warner/Chappell Music, was interjected into public domain in the 20s, according to new evidence filed in a two-year-old suit.

By Geoff Weiss

Opinions expressed by Entrepreneur contributors are their own.

Shutterstock.com

A documentarian making a film about the song "Happy Birthday' may have just crashed the party of Warner/Chappell Music, which has lucratively held the tune's copyright since 1935.

After filing a lawsuit two years ago claiming that the world's most popular song shouldn't be under copyright, filmmaker Jennifer Nelson submitted new evidence yesterday that could ultimately be irrefutable, Ars Technica reports. The so-called "smoking gun" is a 1927 songbook containing the song's lyrics that precedes Warner/Chappell's copyrighted version by eight years.

Warner/Chappell, which is one of the world's largest music publishers and a division of the Warner Music Group, currently licenses the tune out for more than $2 million per year, according to Ars Technica.

Related: What Businesses Should Know About Copyright and Twitter Use

Nelson, who had to pay $1,500 in order to use the song for her film entitled "Happy Birthday,' is seeking a refund, and is also representing a class of plaintiffs with similar grievances.

The 1927 Everyday Song Book, recently unearthed by prosecutors, which Warner/Chappell "mistakenly" failed to produce during the discovery phase ending last July, features the "Birthday Song' without a copyright notice -- meaning that, according to the 1909 Copyright Act, it had therefore been "interjected irrevocably into the public domain."

"Happy Birthday' was originally co-written by Kentucky sisters (and schoolteachers) Patty and Mildred Hill, and first published in 1893 by Clayton Summy, a company later purchased by Warner/Chappell. The prosecution's filing, which can be viewed in full right here, arrives two days before U.S. District Judge George King was set to rule on the matter.

Related: Artist Sues Starbucks for $750,000 for Allegedly Stealing Her Designs

Geoff Weiss

Former Staff Writer

Geoff Weiss is a former staff writer at Entrepreneur.com.

Want to be an Entrepreneur Leadership Network contributor? Apply now to join.

Side Hustle

The Side Hustle He Started in His College Apartment Turned Into a $70,000-a-Month Income Stream — Then Earned Nearly $2 Million Last Year

Kyle Morrand and his college roommates loved playing retro video games — and the pastime would help launch his career.

Business News

A Former Corporate Lawyer Now Makes Six Figures on YouTube — Here's How She Does It

Here are the secrets to starting and growing a successful YouTube channel, according to a YouTuber with millions of subscribers.

Growing a Business

How to Determine The Ideal Length of Your Marketing Emails Your Customers Will Actually Read

Wondering how long your marketing emails should be? Here's what consumers say — so you can send them exactly what they like.

Business Ideas

63 Small Business Ideas to Start in 2024

We put together a list of the best, most profitable small business ideas for entrepreneurs to pursue in 2024.

Business News

Y Combinator Helped Launch Reddit, Airbnb and Dropbox. Here's What I Learned From Its Free Startup School.

The famed startup accelerator offers a free course on building a business — and answers five pressing questions for founders.