So when I was little I actually took piano lessons for a little while but I was not a fan of practicing. I did however love to teach myself songs I heard. Among those songs were mostly Disney songs and my absolute favorite song I taught myself to play was "A Whole New World" from Disney's Aladdin. I would sit at the piano for hours singing the song until I figured out which notes to play and eventually I got it. Not thaat it was a fancy version but still not bad if I don't say so myself.
You might even catch me singing a song from The Little Mermaid if I think I am all alone or in my car too lol.