What is your favorite tune in from an anime?

[kakoi_sugoi_yama]

I still can't get over the fact that menchi sings the end theme. I have to agree that Cowboy Bebop has one of the best scores ever. I am have become very partial to .hack's music over the past couple days, as well as the end theme to Lupin the III " Walusa P san ju hachi kono te no naka ni". That is one of my favorite lines ever! One Piece's Watashi ga Iru yo! is pretty good to. I love evey bit of One Piece's music. It is just so fun.