Disney songs

My cousin and I started randomly singing Disney songs earlier today, and we were surprised at how much we remembered (also how much we'd forgotten). But it was my Ahia, who came in late, who remembered the most ;-) Together, I think we managed to sing at least one song from every Disney movie that came out in the late 80s to the 90s. And I learned the correct lyrics for some songs I hadn't realized I'd misheard/misremembered.

Anyone remember these songs/the movies they came from? (Yes, some are dupes)

1. "Casey Junior's coming down the tracks"
2. "Drip drip drop little April shower"
3. "We are Siamese, if you please (meoow)"
4. "Whistle while you work *doot doot doot doot doot doo*"
5. "Zero to hero!"
6. "God help the outcasts, hungry from birth. Show them the mercy they won't find on Earth"
7. "Le poisson, le poisson, hee hee hee HO HO HO"
8. "We can do it we can do it we can help our Cinderelly"
9. "She glanced this way. I thought I saw"
10. "Riffraff, street rat, I don't buy that. If only they'd look closer"
11. "Listen with your heart. You will understand"
12. "Look for the bear necessities"
13. "Bella notte~"
14. "(something) raging tiger. (something) big typhoon. (something) coursing river"
15. "I've got whosits and whatsis galore. Want thingamabobs? I've got plenty!"
16. "So I'm roughly the size of a barge"
17. "When you wish upon a star..."
18. "I know you, the gleam in your eyes was so peculiar a gleam"
19. "From the day we arrive on the planet. And blinking, step into the sun"

Also, also: "twitterpated". That is all.