Most who practice yoga do it so they'll look good naked ... but would not expect their next yoga class to be in the buff. The Hot Nude Yoga phenomenon created by New York yogi Aaron Star has caused quite a stir.

This kind of yoga focuses on freedom and connecting with others in an intimate and sensual way -- but is not in any way a sexual experience. These yoga groups are popping up everywhere.

So: Would ya do downward dog in your birthday suit?