Is Happy Birthday to You copyrighted? - Widerman Malek, PL

Lawsuit targets singing of 'Happy Birthday

Ryan Oberle - Sr. Designer - BRPH

Federal judge rules 'Happy Birthday' song in public domain

Is Happy Birthday to You copyrighted? - Widerman Malek, PL

U.S. judge rules copyright for 'Happy Birthday' invalid

Richard Edmond Gamache - Senior Patent Attorney - BAINWOOD HUANG & ASSOCIATES, LLC

Happy Birthday song officially recognized in public domain - CBS News

Federal judge rules 'Happy Birthday' song in public domain

The Tangled History And Mysterious Legality Of “Happy Birthday”

All the 'Happy Birthday' song copyright claims are invalid, federal judge rules - Los Angeles Times