Valentine's Day is on Friday. If you're in a relationship, you might be engaging in almost as much PDA as our favorite kissing celebrities. If you're single, you can always shun the romance and treat yourself on Valentine's Day. But what about those of us who want a hot date? Well, we've got just the ticket. These hot celebrity guys are either single or haven't quite put a ring on it, and we think they'd make for pretty perfect valentines . . . even if only in our dreams.