This week's Crush is Welsh singer (formerly classical, now tarted up pop) Charlotte Church. I'm not familiar with her music, but she is quite easy on the eyes.
Singers should have good lung capacity.
Now, I realize I'm treading on Creepy Old Man territory here, but my rule of thumb is if a woman is on the cover of GQ, she's fair game. The animated GIF that originally piqued my interest is here (let it load, folks). I love classical music!