In a rare departure from pink, Grande arrived at the European premiere in London wearing a frothy lemon-yellow Ralph Lauren gown and round-frame sunglasses. She finished her look with Swarovski jewellery.

Erivo opted for a sculptural Schiaparelli design with a full tulle skirt, and jewellery by De Beers.

For the Wicked premiere in New York, Erivo wore a custom Dior haute couture dress with a sheer bodice and silk skirt, finished with a veiled headpiece by Stephen Jones.

Grande opted for a custom Louis Vuitton dress with peplum detail in a raspberry satin fabric, with jewellery by Lorraine Schwartz.

Erivo appeared on The Tonight Show Starring Jimmy Fallon wearing a leather button-down dress by Salon 1884, paired with emerald Jimmy Choo heels and a wide-brim hat.

Ariana Grande also made an appearance wearing a tiered Giambattista Valli dress with a ruched bodice.

Erivo was pictured outside ABC Studios in New York City wearing a wide-shoulder jacket and iridescent green trousers by Marc Jacobs.

For the Wicked premiere in Mexico, Erivo wore a glittering black Thom Browne dress with an exaggerated structured waist, complete with patent black platform heels.

Grande walked the yellow carpet in a pearlescent Atelier Versace tiered organza gown and satin platform heels.

Erivo stepped out at the Los Angeles premiere in a vivid vinyl green cut-out dress, custom-made for her by Louis Vuitton, complete with fringed cape and one-of-a-kind collier by Roberto Coin.

Grande wore head to toe custom Thom Browne, wearing a checkered white and baby-pink strapless dress with a structured circle skirt, complete with matching gloves and a pair of bejewelled heels that nodded to The Wizard Of Oz’s iconic ruby slippers.

Erivo attended the ‘Journey Through Oz’ tour in Australia channelling villainous energy in a black strapless Louis Vuitton dress complete with a structural skirt.

Grande wore a custom Vivienne Westwood blush tulle dress – heavily inspired by Glinda’s costume from the original film – with a bejewelled boned corset and sheer sleeves, finished with a butterfly crystal necklace from Lorraine Schwartz.

For a Wicked photocall in Australia, Grande wore a peachy-hued custom Bode dress with bow-details and matching heels.

Erivo opted for an archival Marc Jacobs look, contrasting brocade emerald green on top with a delicate lace black skirt and platform ‘Kiki’ ankle boots.

Erivo wore a green bejewelled Erdem dress layered over grey pinstripe trousers and a grey vest top to the WSJ Innovator Awards.

Grande was pictured wearing a semi-sheer corseted dress from Vivienne Westwood with Swarovski jewellery and a pair of white Gianvito Rossi heels.