I think this is a fun idea, and it is always interesting to see WHO everyone thinks is hot. (ie. Sarah Jessica Parker) Since most of you here are guys, I'll be fair and make it about women. I'll even start you off.
Though I am straight I think the following two ladies are cute (or "hot")
The next is not quite as famous. Nikki from the first American Idol. I'm not sure, it's something about her eyes. (Though her eyes might not be as cool without makeup) Plus she sings really good. (look up her version of black velvet) She's got that smokey sultry kinda voice, which rocks IMO.
Ok, that's all for me. Your turn
[Update by Gizmo: This thread is exempt from the "If it's dead, leave it be" rule.]