Mr C's music in Marlborough, MA
You buy the sheet music (Amazon.com or Sheet Music Plus are places to look for it) and you practice.
You can buy from Sheet Music Plus or Music Notes.com.
You can buy legal copies of this song at Sheet Music Plus or Musicnotes.com.
You can buy sheet music from Music Notes.
You can buy sheet music from Musicnotes.com.
You can buy sheet music for Eric Carmen legally from places such as Music Notes.com or Sheet Music.com.
You can buy the sheet music legally from Sheet Music.com or Music Notes.com.
You could buy the sheet music legally at a music store.
You can buy sheet music at your local music store.
I have not found it on the internet at all. I am guessing that you might have to go to a GOOD music store (not a cheap place, they wont have it) and buy it there. Or online.
If the music is in the public domain, you can find it legally on the internet. Otherwise you have to buy the sheet music. Artists deserve payment. Sometimes public libraries will buy sheet music so you can check if yours does.
Try J.W. Pepper. They'll have a wide variety of Disney sheet music.