Is it OK to ask someone from a different school to my prom?

Is it OK to ask someone from a different school to my prom?

Pamela Pekerman (Trend Spotter, Bagista) gives expert video advice on: Who's a better prom date, a friend or a boyfriend or girlfriend?; How far in advance should I ask someone to prom?; Is it OK for a girl to ask a boy to prom? and more...

If you are dating somebody from another school or you just like somebody from another school, there's no reason why you shouldn't ask them because it is about going to the prom with the person you want to be there with. So go for it, ask them.