''WHO'' wrote the song ''Happy Birthday To You''.

''Happy Birthday To You'' it is the most singed song in the world. The Apollo 9 astronauts even sang it in their space capsule in 1969. It was written by a New York teacher Patty Smith Hill. She loved young children and singed this song for them. At first this song was called: Good Morning To All''. Her sister wrote the music. It was published in 1935.


Photo from: http://quotesgram.com/patty-smith-hill-quotes/