Names of singers on these animated skits

[Cookie fan]

I remember 2 animated clips that had some very good vocals on the background music; One featured a very short clip with 2 crows singing about being alive- the 2 crows sang about "a stone on the street, they don't need to eat, they don't breathe, they don't grow, they don't learn, they don't know what it is to be alive". The man and woman who sang that song did it with soul. I loved that song!

The other clip I'm thinking of was about another short clip featuring an ostrich, a frog, a mole and a bee- that taught about under, over, around and through. They switched roles and all that, but the music was beautiful. I particularly liked the vocals on it. This is a longshot, but if anyone recalls these clips- does anyone know the names of the persons who did these vocals? Just curious.