Is a Good Singing Voice in a Woman a Turn-on?

['Hamas' Jenkins]

It's obvious that women value it in men (hence, rock cretins and their supermodel wives), but I never thought a woman's voice could make a difference in a level of her attractiveness.

As an example: To me, Katy Perry would be less attractive if she had the voice of an opera singer but a chest two cup sizes smaller.

I thought this was standard operating procedure for most guys--maybe it is, perhaps it's not--I hadn't put a ton of thought into it.

And then I heard Kristen Bell sing.

Although I always found her cuteiful, she climbed to near the Portman echelon of hotness for me after hearing her voice.

What about you? Does voice increase hotness, or is it a non-factor?