■ 23 September 2015 | 3:56 PM
The Rock thinks about singing happy birthday to a fan. (YouTube screenshot)
A judge recently ruled the song "Happy Birthday to You" is public domain giving everyone who didn't realize it wasn't the chance to sing it unencumbered.
There's a bit more legal proceedings to go through, such as what do you do about the $50 million in licensing fees picked up by the massive company Warner Music. But right now, all that matters is you can sing this song even if your voice isn't any good.
Here are a few celebrities belting the song for you to practice these recently legal words.
Caution: The Rock makes some inappropriate references