Helen Mirren, Kate Beckinsale, Rebel Wilson and Sienna Miller walk the red carpet in face masks for the Monte Carlo Gala for Planetary Health

The annual gala, hosted by the Prince Albert II of Monaco Foundation, was this year dedicated to the ocean, Earth and humanity

Kate Beckinsale wears Georges Chakra to attend the Monte Carlo Gala For Planetary Health on September 24, 2020. EPA

Helen Mirren wears Dolce and Gabbana to attend the Monte Carlo Gala For Planetary Health on September 24, 2020. Getty Images

Sienna Miller in Gucci attends the Monte Carlo Gala For Planetary Health on September 24, 2020. Getty Images

Rebel Wilson, wearing Rene Ruiz Collection, and Jacob Busch attend the Monte Carlo Gala For Planetary Health on September 24, 2020. Getty Images

Leona Lewis in Pamella Roland attends the Monte Carlo Gala For Planetary Health on September 24, 2020. Getty Images

Johnny Depp attends the Monte Carlo Gala For Planetary Health on September 24, 2020. Getty Images

Maisie Williams wears Dior and an Alaia face mask to attend the Monte Carlo Gala For Planetary Health on September 24, 2020. Getty Images

Designer Tommy Hilfiger attends the Monte Carlo Gala For Planetary Health on September 24, 2020. EPA

Singer Sting, Princess Charlene of Monaco and Prince Albert II of Monaco pose on the red carpet ahead of the 2020 Monte Carlo Gala for Planetary Health. EPA

Andy Garcia attends the Monte Carlo Gala For Planetary Health on September 24, 2020. Getty Images

Sting attends the Monte Carlo Gala For Planetary Health on September 24, 2020. Getty Images

Chloe Green attends the Monte Carlo Gala For Planetary Health on September 24, 2020. Getty Images

Pauline Ducruet attends the Monte Carlo Gala For Planetary Health on September 24, 2020. Getty Images

Ophelie Guillermand attends the Monte Carlo Gala For Planetary Health on September 24, 2020. Getty Images

Model Alton Mason attends the Monte Carlo Gala For Planetary Health on September 24, 2020. EPA

Cindy Bruna attends the Monte Carlo Gala For Planetary Health on September 24, 2020. Getty Images

Alina Baikova attends the Monte Carlo Gala For Planetary Health on September 24, 2020. Getty Images

Prince Albert II of Monaco and Princess Charlene of Monaco pose on the red carpet ahead of the 2020 Monte Carlo Gala for Planetary Health in Monaco. EPA

Fawaz Gruosi and Sophie Taylor attend the Monte Carlo Gala For Planetary Health on September 24, 2020. Getty Images

Gareth Wittstock, Roisin Gavin and guests attend the attends the Monte Carlo Gala For Planetary Health on September 24, 2020. Getty Images

Sofia Resing and a guest attend the Monte Carlo Gala For Planetary Health on September 24, 2020. Getty Images

Johnny Depp, Helen Mirren and Rebel Wilson were among the A-list names to attend the Monte Carlo Gala for Planetary Health on Thursday evening.

The annual gala is hosted by the Prince Albert II of Monaco Foundation and brings together leading philanthropists, decision makers, artists, talents and scientists to try to bridge the gap between health and the environment.

This year's event focused on "protecting the ocean and Earth for the future of Humanity", and was one of the first major A-list red carpets to take place during the coronavirus pandemic.

Stars came out in force for the event, hosted by Prince Albert and Princess Charlene of Monaco.

Among those in attendance were Sting, Game of Thrones actress Maisie Williams, and Andy Garcia.

The event was of course held with coronavirus precautions in place, and many stars chose to add a face mask to their red carpet look.

Actress Kate Beckinsale stunned in a white and gold embellished one shoulder gown and matching face mask, by Lebanese designer Georges Chakra.

Helen Mirren went for a classic Dolce and Gabbana emerald green dress, with a custom-made matching face mask.

Bridesmaids star Rebel Wilson chose a metallic pastel dress by Rene Ruiz Collection, complete with matching face mask, while Maisie Williams wore a black netted Dior gown, with a plain black Alaia face mask.

Scroll through the gallery above to see more red carpet looks