For industry insiders, celebrities and paparazzi, the first Monday in May is when all the Met Gala magic happens.
From elaborate ensembles and unforgettable dresses to totally bizarre moments we'll be talking about for years to come — it's undeniably one of fashion's biggest nights.
Who remembers when Katy Perry commanded attention in 2018 with her larger-than-life angel wings? Or, how about when Rihanna wore one of the most exaggerated gowns to ever grace the Metropolitan Museum of Art's staircase?
From "wow" to "wild," here's a look back at 15 looks we will never forget.
In 1999, two of Vogue's most well-known faces, Andre Leon Talley and Anna Wintour, showed up in full glitz and glam.
Rihanna
When you think of the Met Gala, it's hard not to think of Rihanna's elaborate Guoi Pei haute couture dress worn in 2015 that took over the red carpet -- literally!
Katy Perry
Perry took the 2018 Met Gala theme, "Heavenly Bodies: Fashion and Catholic Imagination," to new heights when she wore this gorgeous gold Versace dress paired with gigantic feathery wings.
P. Diddy
If you want to steal the show, lay back and strike your best pose on the Metropolitan Museum stairs as P.Diddy did in 2017 while wearing a stellar caped tuxedo look.
Kim Kardashian
Kim K. was nearly eight months pregnant when she wore one of the most talked about and meme'd floral print looks in Met Gala history.
Sarah Jessica Parker
Talk about making a statement?! Parker nailed it with this mohawk-shaped headpiece created by award-winning hat designer Philip Treacy.
Priyanka Chopra Jonas
Jonas looked like a regal queen at the 2018 Met Gala in her deep rouge-toned velvet Ralph Lauren gown paired with a beautiful gold-beaded hood.
Lupita Nyong'o
Nyong'o's glorious updo is arguably one of the most elevated looks the Met Gala has ever seen. Her textured 'do was a nod to styles worn by Nina Simone and traditional African hairstyles.
Cara Delevingne
Her famous eyebrows usually take center stage, but for the 2017 Met Gala, Delevingne turned heads with her metallic, painted bald head.
Solange played off the Met Gala's 2015 theme: "China: Through The Looking Glass" in this breathtaking dress that you can't miss.
Jennifer Lopez
J.Lo looked dreamy in this flowy, sheer Valentino look worn to the 2017 Met Gala.
Frances McDormand
One word: wow! McDormand sure knows how to take things to the next level.
Beyoncé
Queen Bey was hard to miss in this embellished ensemble topped with a high ponytail.
Lena Waithe
For the 2018 Met Gala, Waithe wore a powerful rainbow-colored Pride flag caped look that felt true to her and so many others.
Kendall Jenner
Jenner's barely-there gown worn in 2017 is equal parts sexy and sassy.
Lady Gaga
Lady Gaga stunned onlookers by transforming into a trio of vibrant looks as she was escorted on the 2019 pink carpet wearing a voluminous hot pink Brandon Maxwell ensemble.
Lil Nas X
The rapper dazzled in an amazing gilded Versace look that included a cape and jumpsuit.