Most Memorable Animated Song?

Song and animation can't be parted. Song doesn't just deliver tunes but also message, that's the important part.

Since animated feature emerge so fast in 90's up to now, animated had already won 8 Oscar in the past 23 years for Best Original Song and won 10 Grammy for the same category. And almost every year animated song enter the nomination list.

So, which song do you find hard to forget?

Discuss the list here