We all like things that are out of character for us, and we call these guilty pleasures. What be yours?
Mine is jrock/jpop. I love me some D.A.I. ^^
My biggest guilty pleasure is probably singing/humming along to crappy pop/r&b songs on the radio. :P And JPop/JRock, as I told you, is hardly a guilty pleasure.
If it's out of character for you, and it's definitely out of my metalhead persona, it's a guilty pleasure.