Happy Birthday to you! It belongs to you and me.

According to a US Judge Song ‘Happy Birthday to you’ doesn’t have any copyright in fact it belongs to the public domain.

Currently, copyright of the song is with Warner/ Chappel Music Inc. He further added the song’s original copyright obtained from the song’s writers included only tune not the lyrics.

Source

The ruling means that ‘Happy Birthday to you’ belongs to Everyone! YaY!!!