For her Met Gala debut, Gaga rocked the stage donning a dazzling sequined catsuit from Armani Prive.
Marking her first time walking the red carpet, the Oscar winner suited up in an ornate ensemble from Alexander Wang for Balenciaga, which featured black feather accents, a black beaded crown and an intricate kimono.
Dressed head-to-toe in Versace, Gaga turned heads in a metallic ensemble comprised of an impeccably beaded bodysuit, a matching jacket and platform boots.
Staying on theme for the after party, she rocked an equally stunning number from the Italian fashion haus.
In what is considered her most memorable Met Gala outfit to date, the "Poker Face" singer made her grand entrance wearing a dramatically oversized pink gown, which had a 25-foot train, by Brandon Maxwell. Much to everyone's surprise, this was only the first part of her ensemble.
For part two, she ditched her pink gown and matching headpiece for a strapless black gown that featured an asymmetrical silhouette.
In the true spirit of Camp, she had another outfit change. For the third part of the ensemble, Gaga slipped into a pink cylindrical dress made of the same fabric of her original gown.
As she made her way up the Met steps, the "Shallow" singer stripped down to her lingerie and flaunted a matching black sequined bra and underwear set, which she paired with fishnet stockings.