Warner loses his “Happy Birthday” song

History of the Happy Birthday Song

Who owns the copyright on the song 'Happy birthday'? - Quora

Happy Birthday to You! - TV Tropes

Happy Birthday' song set for public domain after long copyright feud

Happy Birthday: my campaign to liberate the people's song – video, News

Sing it! 'Happy Birthday to You' is now in the public domain

The twisted history of the Happy Birthday song—and the copyright shenanigans that keep it profitable - Boing Boing

Judge Throws Out Publisher's Claim to 'Happy Birthday' Copyright

Happy Birthday to You to enter public domain after copyright case is settled, Music

Don't sing 'happy birthday,' at least in a pandemic, Swedish research shows

Music Business Roundup: Happy Birthday Copyright, UphoricTV & More - American Songwriter