Mary-Kate Olsen Nails it Down

Mary-Kate Olsen gets a manicure at Aurelia Adrian Institut de Beaute in West Hollywood on Friday afternoon.

The 21-year-old Olsen twin spent almost an hour in the salon getting her beauty treatment before returning to her car.

MK sported a flared, white kimono-style dress with 5-inch gladiator-style heels.

10+ pictures inside of Mary-Kate Olsen nailing it down…