Work on Brie Larson's Oscars dress began in December.
The 26-year-old actress - who picked up the Academy Award for Best Actress in a Leading Role for her performance in 'Room' - wowed on the red carpet on Sunday (28.02.16) in a stunning custom-made blue Gucci gown.
And now her stylist, Cristina Ehrlich, has revealed the inspiration and process behind the glamorous dress.
Asked how long it took, Cristina said: "We started before Christmas. We've looked at each red carpet look as a separate 'performance' if you will, and taken each opportunity to try something new."
The floor-length frock was designed by Gucci's newest recruit Alessandro Michele and that was important for Brie as she wanted something "fresh".
Cristina added: "It was important for us to work with a designer who is very fresh on the scene. Alessandro has never designed for the Oscars before - like Brie, he is new to Gucci, just as she is still discovering who she is as an actor on the red carpet and this also being her first Oscars."
And what made the blonde beauty fall instantly in love with the designer dress was the royal blue colour and the waist-clenching belt made of pearls.
Cristina told The Daily Telegraph newspaper: "Our first inspiration was the colour. Brie responded to it immediately and from there we decided we wanted to work with Alessandro Michele and the house of Gucci. It was a truly collaborative and mutually respectful effort."
And of the pretty pearl accessory, she added: "We both agreed it was another element of the dress that needed to be added."