04/14/2015 11:33 EDT | Updated 04/14/2015 11:59 EDT

Dianna Agron Wows In Alexander McQueen At Olivier Awards

She's a vision in white!

Dianna Agron is a vision in white!

On Sunday, the former "Glee" actress hit the red carpet for the Olivier Awards in London wearing an Alexander McQueen gown fit for a princess. The 28-year-old exuded elegance in the white floor-length gown that flattered her form with its thick white belt and high neckline with ruffled detailing. Pearl accents on the belt and neck added to the ethereal look.

Keeping the neckline in focus, the blond beauty opted for a chic, side-parted updo. Her makeup was kept soft and simple, with rosy cheeks, cat eye liner and a neutral lip. Black nail polish added a touch of edge and modernity to the ensemble, as did her assortment of Annina Vogel rings and earrings.

Dianna's choice in gown is fitting as she will hit the stage later this year to perform in "McQueen," a West End production about the late designer's life. "McQueen" performances will run from May 12 to June 27 at the St. James Theatre in London.

We're not to sure who's more excited -- us, or Agron.

Happy, happy, happy girl. I got so excited I blocked the important bit. McQueen...

A photo posted by Dianna Agron (@diannaagron) on

Keep killing it, Dianna!

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