Are there any celebrities that support corporal punishment?

Pink, Gloria Estefan, Crystal Bernard and Russell Peters.

If it's proportionate to the number of people in society who still support it, probably about half of celebrities do and half don't.

Though the only "celebrity" I've ever heard speak out against it is Marilu Henner, to be honest.

To be honest, most celebrities DON'T disclose where they stand on the issue, wherever they stand, because there are idiots out there who will boycott someone simply because they disagree with them.