I'm looking for a certain song?

This has been bothering me for the longest, I've heard this song before BUT I don't know the name of the song OR artist. It's a clical piano song that sounds almost completely like Beethoven's Moonlight Sonata but it's in a different key, I recently heard this song out of three played in an episode of the disney show The Proud Family Episode : Monkey Bidness, the monkey plays three songs on the piano at one point but I don't know the names of them, So if I can get the names I can search them up and through process of elimination find the right song I want, Thank you to anyone who helps