On Monday night, one of fashion's biggest nights made its May return for the first time in two years. Hundreds of guests from fashion, sports, music, film, TV, technology and beyond were invited to the annual fundraiser for the Metropolitan Museum of Art's Costume Institute. Here are a few of the looks people are talking about.

Kim Kardashian channeled a Hollywood icon for her Met Gala look on Monday.

The reality TV show star wore one of Marilyn Monroe's most iconic dresses as she and her boyfriend, comedian Pete Davidson posed on the red carpet in New York City.

The gold-beaded body hugger is Monroe's same dress she famously sang "Happy Birthday" to President John F. Kennedy for his 45th birthday in 1962.

Kardashian told Vogue that she had to lose 16 pounds to fit into the dress, which was based on a sketch by Bob Mackie and then designed by French-born Hollywood costume designer Jean-Louis, Vogue reported.

According to Vogue, Marilyn reportedly paid $1,440 for the dress.

The Associated Press reported the dress was sold at Christie's at auction in 1999 for $1.26 million, then was sold again in 2016 at Julien’s Auctions for $4.8 million by Ripley’s Believe It or Not! Museum.

The dress has been housed at their museum in Orlando, Florida, where Kardashian and Davidson were seen leaving last month, The Sun reported.

We are seeing stars! @KimKardashian made fashion history tonight at the 2022 #MetGala when she became the only person besides #MarilynMonroe to ever wear the iconic “Happy Birthday” dress owned by Ripley’s Believe It or Not! pic.twitter.com/7ajrVex1m2

— Ripley's Believe It or Not! (@Ripleys) May 3, 2022

Kardashian told Vogue that the dress was flown, via private plane, to her in California, and she had to wear gloves to put it on.

To tie the whole look together, the 41-year-old died her hair blonde.

After she walked the red carpet, the AP reported that she changed into a replica.

Democrat Rep. Alexandria Ocasio-Cortez made a bold statement at the New York Met Gala Monday night.

The solid white, strapless customized gown featured "tax the rich" emblazoned in red on the back.

On social media, Ocasio-Cortez said Brother Vellies created the dress.

"The medium is the message, "Ocasio-Cortez captioned the photo. "Proud to work with Aurora James as a sustainably focused, Black woman immigrant designer who went from starting her dream at Brother Vellies at a flea market in Brooklyn to winning the CFDA against all odds - and then work together to kick open the doors at the Met."

The dress caused quite the reaction on social media, with people including Donald Trump, Jr. and Sen. Ted Cruz, letting their followers know they were not fans of the gown.

Though attendees to the Met often choose catchy designs, AOC's message was seen as bold for a room filled with some of the wealthiest Americans, Forbes pointed out.

According to Forbes, tickets to the Met cost at least $30,000.

Ocasio-Cortez wasn't the only lawmaker who used fashion to make a statement at the event.

Fellow Congresswoman Carolyn Maloney wore a gown with the words "equal rights for women" on it.