It's your birthday! Here's 15 of the world's most famous musicians wishing you many happy returns of the day through the medium of song.

In the United States, “Happy Birthday to You”—one of the most popular songs in the world—is still under copyright. And it will be until 2030. While you’re free to sing the song in ...

Yes, there have been different variations to the song over the years, such as, “You smell like a Monkey, ... We have been singing the Happy Birthday song our entire lives.

Happy Birthday To You" is a staple of birthday parties around the world - but it can't be sung in TV, movies and other public performances without paying a hefty sum. That might change soon.