The Baseball Walk Up Song Database
WalkUpDB: A specialized, ad-free database designed to track the current and historical walk-up songs for every player and team in Major League Baseball. It allows users to search by player, team, artist, or song, and even provides links to "clean" radio-edit versions of the tracks. Not sure why you would want that, but here we are.
There are a couple different website out there who do this type of thing, MLB.com even has one too but I was looking for a specific song that I've been hearing when Jake Bauers comes up to the plate.
The song is was done by one Roy Ayers, whom I know nothing about. The song is titled: "Everybody Loves The Sunshine" from 1976. The song is really interesting for it's ability to put a smile on your face, or at the very least, perk up your mood just a bit.