23 celebrities you might be surprised to learn have attended the Met Gala over the years

She attended the "Christian Dior"-themed event wearing a navy-blue John Galliano dress.

She wore a cheetah-print ball gown with a shiny shawl to the event, which was themed "Jacqueline Kennedy: The White House Years."

However, she dressed more casually than Clinton, and wore a black corset top with a yellow printed skirt.

Though the event was themed "Jacqueline Kennedy: The White House Years," Adrienne Bailon, Kiely Williams, and Naturi Naughton of 3LW arrived wearing neon ensembles.

She attended two more Met Galas in 2005 and 2007, but hasn't been back since.

For her first Met Gala appearance, the actress donned a floral black-and-white gown, and strappy black heels.

After his first Met Gala, Cannon only attended once more in 2007 with his then-fiancée, Victoria's Secret model Selita Ebanks.

The event was themed "Superheroes: Fashion And Fantasy," for which Duff wore a sparkling strapless gown.

The "Gossip Girl" actress wore a single-strap dress with a black bodice and gold skirt.

The comedian attended the Met Gala once again in 2014.

She previously attended in 2007, but hasn't made an appearance since.

He then became a regular at the event, attending frequently with his wife, Jessica Biel. However, he hasn't attended since 2012.

She wore a long-sleeved gown with a ruffled skirt to the event. It was the first and only time she has attended the Met Gala throughout her career.

He wore a classic tuxedo for the occasion, which was themed "American Woman: Fashioning a National Identity."

She shone on the red carpet in a sparkling gown with ruffled sleeves.

The musician hasn't attended a Met Gala since the event's theme was "Alexander McQueen: Savage Beauty."

She wore a black-and-gray gown to match the 2013 event's "Punk: Chaos to Couture" theme.

She arrived at her first Met Gala wearing a bedazzled knee-length gown, which perfectly matched the red carpet.

She wore a blue Louis Vuitton dress for the event, which had green, black, and white striped sleeves and an asymmetrical skirt. The musician also wore combat boots and carried a sparkling purse.

Her strapless gown had a silver bodice with gray strips across its neckline and chest. The dress also featured a tiered skirt made from the two fabrics with a high slit.

The professional ballerina completed the look with heeled sandals, diamond jewelry, and a small clutch.

The couple wore black-and-white ensembles to the "Heavenly Bodies: Fashion and the Catholic Imagination" event.

While Charles wasn't the first internet star to attend the Met Gala, he still surprised audiences when he arrived wearing a top made from safety pins.

For the "Camp: Notes on Fashion" event, the YouTuber and comedian wore a gown in shades of pink, purple, and white.