Yes, there might be some. Fanfiction platforms like Archive of Our Own or FanFiction.net could potentially have fanfictions where Ezra from Star Wars Rebels sings. You can search using relevant tags on these platforms to find them.
One interesting aspect could be how the singing is used to convey emotions. For example, if Ezra sings a song from his home planet, it can show his homesickness. Another aspect is the reaction of other characters. They might be surprised or moved by his singing.
Well, there are a few artists who might have sung a song titled 'The Story'. But one notable one is Taylor Swift. Her version has gained quite a bit of popularity.
There were several documents that mentioned a father crying in a song. Among them, documents [1] and [2] mentioned that when the two contestants sang "Father" in the competition, they moved the judges and the audience, and some even shed tears. In addition, documents [4] and [6] also mentioned that other singers had aroused the audience's emotional resonance when they sang "Father." However, these documents did not provide specific details or background information, the reason why the audience cried, or the name of the singer. Therefore, he could not answer this question accurately.