Duchess Kate wears sparkly Jimmy Choos for a night out in London

By Good Morning America

Duchess Kate dressed up for a night out in London with her husband, Prince William, on Tuesday, and royal-watchers can't stop talking about her look.

To take in a performance of "Dear Evan Hansen," the Tony Award-winning musical about a teen with social anxiety, the Duchess of Cambridge paired a black dress by Eponine London with sparkly Jimmy Choos, according to Harper's Bazaar.

She completed the look with a matching, eye-catching clutch.

Mark Cuthbert/UK Press via Getty Images

Catherine, Duchess of Cambridge attends a charity performance of "Dear Evan Hansen" in aid of The Royal Foundation at Noel Coward Theatre in London, Feb. 25, 2020.

Mark Cuthbert/UK Press via Getty Images

Catherine, Duchess of Cambridge attends a charity performance of "Dear Evan Hansen" in aid of The Royal Foundation at Noel Coward Theatre in London, Feb. 25, 2020.

The performance, which took place at the Noël Coward Theatre, was hosted by The Royal Foundation, the Duke and Duchess's charitable organization. Mental health has long been an issue of great importance to the royals.

This evening The Duke and Duchess of Cambridge attended a special performance of @DearEvanHansen, in aid of The Royal Foundation.@DEHWestEnd | #DearEvanHansen pic.twitter.com/3rbDQYjK9k

— Kensington Palace (@KensingtonRoyal) February 25, 2020

🗣️ The musical @DearEvanHansen has been credited with helping to start important conversations about mental health between parents and teenagers.

The issue of mental health is a key priority for The Royal Foundation, who developed the free @GiveUsAShout text line 📱 pic.twitter.com/4DjCiqB9y0

— Kensington Palace (@KensingtonRoyal) February 26, 2020

In fact, Kate, 38, wore her glittery stilettos to a gala last June that marked Addiction Awareness Week.

Samir Hussein/WireImage/Getty Images, FILE

Catherine, Duchess of Cambridge attends the first annual gala dinner in recognition of Addiction Awareness Week at Phillips Gallery in London, June 12, 2019.

View this post on Instagram

The Duchess of Cambridge, Patron of Action on Addiction, attended the first annual gala dinner in recognition of Addiction Awareness Week. Before the dinner, The Duchess of Cambridge met former Action on Addiction clients Jay Otty and Melanie Bennett, who worked to prepare food for the gala dinner. Jay is a key member of the ‘front of house’ staff at @Brink_Liverpool – Action on Addiction’s ‘dry bar’ in the city. He has worked in the hospitality industry for seven years, having now been clean and sober for nine years. Melanie says that Action on Addiction’s Self-Help Addiction Recovery Programme, which taught her coping mechanisms and new behaviours, and started the grieving process for her father which she had been blocking for ten years, helped saved her life. Speaking at the dinner, The Duchess said: "What’s remarkable about Action on Addiction is that it goes beyond helping those who are suffering on the courageous journey into recovery – it also lends direct support to the children and families affected by addiction – for as long as it takes." Action on Addiction is the only UK addictions charity that works across all the areas of research, treatment, family support and professional education. The aim of Addiction Awareness Week is to provide a platform for focused conversations about the many different facets of addiction, to enable a wide range of organisations to engage with people and families who may be affected by addiction, and to raise public awareness of the far-reaching and negative effects of addiction. The ultimate aim is that as honest but inspirational stories are shared, those affected by addiction will then feel more able to take the necessary steps to access help, hope and freedom from their addiction. @ActionOnAddiction #AddictionAwarenessWeek

A post shared by Kensington Palace (@kensingtonroyal) on Jun 12, 2019 at 1:22pm PDT