Who? Jennifer Lawrence
What? It's not often that we get to see the slebs having a bad hair day whilst wearing a wet-suit, but Lawrence was snapped with both these things as she filmed scenes for The Hunger Games: Catching Fire. Actually, considering Jennifer had just been hanging about on a surfboard, we think her plaited locks stayed in pretty good shape. Sea water can do wonders for that beach chic style.
Where? 26 November, Hawaii
Verdict? Let us know how you rate the star's on-set style and see our favourite frizz-fighting hair oils below: