Having a delighfully incongruous voice!
If I didn't know any better, I wouldn't say a man that pretty looking would sing like that! In my humble opinion he was the only one that made a pretty girl... Brian May looked like the lady that plays Aunt Petunia in Harry Potter... >_<
I tend to annoy people by playing songs he sang, because they say "What on Earth are we listening to?! Who is this?!"