The following songs are on my playlist, but squirreled away in a secret folder nobody knows about:

Sinohara Tomoe - Ultra Relax
Love Hina - Sakura Saku
Nelly Furtado - Hey, man!
ABBA - Money, money, money
Fullmetal Alchemist - Ready, steady, go
Yanni - Banana Phone
Roxette - She's got the look