It's four french braids starting from the side and going across. Then weaved together and put into a side bun. You could also just do three and braid them together at the side and wear it down. I think that would look nice, as well. As long as all the braids were braided in the right direction for a low ponytail. . . or high one if you're feeling very 80s.
Makes for a classy up-do, I think.