If Olivia Newton-John had still looked like that 5 years ago, maybe her then-boyfriend wouldn't have faked his own death
Seriously, she's too smart and nice to have ever convincingly seemed slutty. If she's really dirty-blonde, she fooled me too.
Oh, yeah, Shania Twain - that's the one I personally would cite as the best-looking - though I'd rather not introduce names and the subsequent objectification.
As for Candice Night, I see that she was a fashion model and has been romantically involved with Ritchie Blackmore for many years. She probably explains why he's no longer interested in playing with Deep Purple