Just so you are aware - most (90%) of the "ASL Songs" on Youtube are horrifically done. They aren't actually ASL at all - they're word for word literal "translations" often done in SEE (Signed English). They are ASL students messing around with the language, or doing homework assignments. They think they are doing an ASL version of the song, but they're not.
Translating songs is very difficult, in fact ASL interpreters take special training in order to do it correctly ... (and not all fully qualified ASL interpreters will even take jobs that include songs, because of the skill set involved)