Who: Olivia Wilde
Where: "Cowboys & Aliens" World Premiere

Take a style lesson from actress Olivia Wilde and fight summer heat with a chic ponytail worn high -- so effortlessly cool!

Get her look: Randomly curl ends of hair using a curling iron. Pull hair back into a high ponytail, twist and secure with an elastic. Take a thin section from the ponytail to wrap around the base, tucking the end using a bobby pin.