The fashion world's most exclusive event since 1948, the gala has a strict "no selfies" rule and Vogue - which hosts the $US40,000 ($53,262) a head bash with New York's Metropolitan Museum of Art in NY - keeps the guest list a closely guarded secret until the red carpet kicks off.
And don't worry if you didn't score a ticket to the black-tie affair, which reportedly started at $25,000.
The Like A Virgin hit-maker snacked on a packet of crisps as she gave fans a sneak peek into her red carpet-worthy look - because every girl needs to eat right? The money from the ticket sales goes towards the Costume Institute. But this year's Met Gala will miss several of Hollywood's freshest faces, including Kaia Gerber and Millie Bobby Brown, after the Anna Wintour-hosted event established a rule banning stars under the age of 18 from attending. This year's theme is "Heavenly Bodies: Fashion and the Catholic Imagination", which is a flawless opportunity to reimagine the decadence of religious iconography into wearable art.
The exhibit will be on view from May 10 through October 8 at The Met on Fifth Avenue in NY in both the medieval galleries and the Anna Wintour Costume Center.More news: Windows 10 Now Powers Nearly 700 Million Devices
But on Monday, fashion lovers can expect updated papal robes, gowns inspired by the inside of Byzantine churches, and even red carpet gowns paying homage to The Vatican and the Sistine Chapel.
However, there is hope for teenagers wanting to attend the Met Gala. "Although this relationship has been complex and sometimes contested, it has produced some of the most inventive and innovative creations in the history of fashion".
In addition, approximately 150 ensembles, from the early 20th century to the present, will be shown from designers including Azzedine Alaïa, Cristobal Balenciaga, Thom Browne, Gabrielle "Coco" Chanel, Domenico Dolce & Stefano Gabbana (for Dolce & Gabbana), John Galliano, Jean Paul Gaultier, Givenchy, Rei Kawakubo (for Comme des Garçons), Riccardo Tisci (for Givenchy), Gianni and Donatella Versace. The museum is aware that this year's theme may upset the religious community. Oh, and just for dramatic effect, she arrived fashionably late to steal the show.