Ariana Grande is paying homage to Glinda in a couple of unexpected ways.

The Oscar nominee has hit the road for theWicked: For Goodpress tour, and revealed what went into her London premiere look on Monday, Nov. 10.

The actress, 32, worked with stylist Law Roach to create a portfolio of looks for the coming weeks, and at the London premiere at the ODEON Luxe Leicester Square, she wore a vintage black one-shoulder ballgown.

But the gown was originally worn in the 1952 musical film,Lovely to Look Atand designed by famed costume designer Gilbert Adrian. The late designer is known for his work onThe Wizard of Oz(1939) and enhancing the world of Oz with Dorothy’s ruby slippers and Glinda’s bubble dress. The gown was sourced from Los Angeles’Lily et Ciewhich stocks gowns from the 20th and 21st centuries, she toldBritish Vogue.

Grande remarked on how special it is not only to have the piece but also to wear it during the press tour. “To now have it in our personal vintage collection, and to wear something made by him on this carpet, feels so emotional and meaningful,” she said.

“Law and I cried many times during this fitting,” she continued.

While Grande made statements in Glinda-inspired bright pink looks throughout theWicked: Part 1press tour, she said this time around she’s trying to channel Glinda’s darker side.

She noted the looks will be “ mature (and) emotional.” “It still feels like an extension of Glinda’s story arc. We’re just telling a different part of her story,” Grande added.

Weeks before the press tour kicked off, Roach, 47, exclusively teased what’s to come in a conversation with PEOPLE.

“Oh, baby, there’s a mood board. There are hours and hours of fitting and laughing and swearing. It’s just a lot of daydreaming and imagination,” the stylist said on Oct. 23.

While he shared what fans can expect, he also revealed how gracious Grande is to the teams of people she and Roach work with.

“What people need to know about her is her gratitude and appreciation, one to be playing, you know, this role, but also, she’s so excited and grateful to the designers who are making these gowns and dresses for her,” he said, noting that she will express her gratitude directly to the designers.

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Wicked: For Goodpremieres in theaters on Friday, Nov. 21.