TIL that only 1 song used in the film Singin' in the Rain was entirely new. All of the other songs, including Singin' in the Rain, had already been used in previous films in one form or another.

https://en.wikipedia.org/wiki/Singin%27_in_the_Rain
#til #todayilearned
https://www.reddit.com/r/todayilearned/comments/1g7k6ug/til_that_only_1_song_used_in_the_film_singin_in/