On May 4, an array of celebrities, models, royalty, and fashion designers will descend upon the Metropolitan Museum of Art in New York for fashion’s biggest calendar event, The Met Gala. Occurring on the first Monday of May each year, this year’s theme is Rei Kawakubo, the Japanese visionary behind the successful label Comme des Garçons. The annual event never fails to bring out the biggest names in Hollywood, wearing the boldest and most daring red carpet looks. Last year, the elegant Queen Rania demanded a double-take in her feathered Valentino gown, while Gigi Hadid and Zayn Malik made their red carpet debut as a couple, with Hadid wearing a Tommy Hilfiger dress and Malik a Versace suit equipped with a metallic arm. And who can forget Claire Danes’ one-of-a-kind glow-in-the-dark dress by Zac Posen? But it’s Rihanna’s jaw-dropping Guo Pei masterpiece – which took two years to create – that she wore at the 2015 ceremony that’s ultimately still on our minds. While we eagerly await this year’s ball, we look back at the most memorable Met Gala moments in recent years.