Hi all! Can someone help me? I saw an cartoon when I was little about a boy who work in the forest and cut the trees.. but he cat an old one whit an evil spirit in it and he get transformed in an pixie whit out wings... a pixie girl helped him and fight togeter whit the evil spirit and make it (evil spirit) a beautiful tree that no one will cut it ever... what's the name of the cartoon if you know.. please help :(

Sounds like Fern Gully. Did it have a crazy bat and the big oil/diesel evil spirit thing sing?