Growing up I always had a thing for Gwen Stefani. But I liked her more back like 12 years ago or so. She used to have more meat on her bones and had some killer curves.
I said this on a similar topic, but Darren Hayes, he was the singer of the Australian group Savage Garden, he's now a solo artist. I would also consider Orlando Bloom, Johnny Depp, and Steven Strait (actor/model).