Happy birthday to you! Everyone knows the traditional birthday song. But did you know that there are countless other songs about birthdays that are reflective and fun for celebrating your big day?

Every 5-year-old knows it. It is the most frequently sung song in the English language, according to the Guinness Book of World Records, surpassing the works of Bach, Beethoven and the Beatles, says ...

On Tuesday a judge ruled that “Happy Birthday”—y’know, the song—is now in the public domain. U.S. District Court Judge George F. King declared that there was no evidence that the sisters who wrote the ...