I'd heard of wizard rock before. I happened to catch two different NPR shows that reported on the phenomenon and played the same clip from a song by Draco and the Malfoys, featuring these memorable lyrics:
My dad is richOkay, so, I love Harry Potter. And I love music. But I have to admit ... I just don't get it.
And your dad is dead
My dad is rich and your dad is dead
Oh well. I s'pose it's more wholesome than Harry/Draco slash.