The white gown had a halter neckline with silver embellishments on the bodice.

She paired the dress with black mesh gloves and a red rose to fit the "Poiret: King of Fashion" theme.

It was an understated look compared to other outfits Rihanna wore to the Met Gala in the years to come.

The suit included a jacket with puffy sleeves, a bow tie, and ankle-length pants. She paired it with black gloves and black pumps.

The jacket's dramatic, oversize shoulder pads fit the event's "The Model as Muse" theme. Rihanna's edgy pixie cut completed the chic look.

The semi-sheer dress designed by Stella McCartney had a scalloped, one-shoulder neckline and a slit on the skirt, showing off her criss-cross pumps.

The gown was eye-catching, but Rihanna's long, bright-red side-braid gave the look a pop of color.

The form-fitting gown Rihanna wore to the "Schiaparelli and Prada: Impossible Conversations" gala had long sleeves, a boat neckline, and flowed to the floor.

It hugged Rihanna's figure, and the gown's texturing caught the light as she walked the red carpet.

Rihanna's two-piece featured a long-sleeve crop top with pointed sleeves and a high-waisted skirt with a side train. She wore a sparkly choker that blended with the neckline of the dress.

The ensemble's backless crop top felt modern and fresh.

Rihanna solidified her status as a Met Gala legend at the "China: Through the Looking Glass" gala.

Her custom yellow look sat off her shoulders. It featured faux fur sleeves and trim, and intricate detailing adorned the ensemble.

The singer making her way down the red carpet while her long train flowed behind her will always be an iconic Met Gala moment.

The 2018 Met Gala theme was "Rei Kawakubo/Comme des Garçons: Art of the In-Between." Rihanna appropriately went with a Comme des Garçons design.

The dress was made entirely of colorful, three-dimensional petals that floated around her. Rihanna paired the look with red heels, lacing her thighs, and pink-toned makeup.

Rihanna's jewel-encrusted silver look featured a mini dress, a separate, longer skirt, and a jacket. A large, pointed headpiece and silver jewelry coordinated with the look.

Demna Gvasalia designed the Fenty founder's custom Balenciaga coatdress. Its collar popped around her shoulders, and the skirt was a subtle mermaid.

Rihanna paired the look with a beanie hat, a diamond necklace, and a stunning crystal headpiece. 

Rihanna wore a custom Valentino Haute Couture gown to the "Karl Lagerfeld: A Line of Beauty" gala.

The gown's form-fitting bodice showed off her baby bump with a rosette in the center, though Rihanna covered it with a hooded, rosette-covered jacket and fingerless gloves when she walked the red carpet. Her dropped-waist skirt flowed into a long train, which trailed behind her on the carpet.

Rihanna completed the look with funky sunglasses that had eyelashes on them.