Buzzfeed posted a ranking of the top 102 Disney songs of all time.  You can get the entire list HERE, but check out the top 5:

#1 - "When You Wish Upon a Star" from Pinocchio


#2 - "Part of Your World" from The Little Mermaid


#3 - "A Whole New World" from Aladdin


#4 - "Beauty and the Beast" from Beauty and the Beast


#5 - "Can You Feel the Love Tonight?" from The Lion King