It's "When the Saints Come Marching In," or some other Dixieland swing. If it made black people happy in the 1920s, it's industrial-strength cheerful; it's cheerful that grew up under Krypton's high gravity and red sun and is super-cheerful now.

And if you're an atheist, and therefore don't believe in the Saints or their inevitable Marching, then you're dead to Joy and should be listening to depressing emo music anyhow.