ON the surface, Hollywood’s after-Oscar parties are held to celebrate the winners and almost-winners at the Academy Awards.

But their real purpose, for many anyway, is to recognise that the entire exhausting epic of the awards season is finally over.

Nowhere is this more true than the Vanity Fair party, where the tables are stacked with junk food made with highbrow flair, and an endless stream of In-N-Out burgers are served in overflowing boxes by the chain’s workers in uniform, all of it telling partiers that the time to starve yourself to fit into tuxes and gowns is over. It’s time to eat again.

Supermodel Kendall Jenner led the charge among celebrities showing a lot of skin.

The 22-year-old Kardashian sister put on a leggy and busty show at the renowned Academy Awards after affair, donning a short statement black dress with plunging neckline and over-the-top sleeves.

The brunette beauty also sported a pair of Christian Louboutin pointed toe heels and emerald green drop earrings.

Paris Jackson, the daughter of the late Michael Jackson, also got the flashing flesh memo, wearing an unusual and revealing sorbet green dress with low neckline and a see-through skirt.

Model Alessandra Ambrosio had jaws dropping in a sparkling sheer ‘naked gown’ which showed off her incredibly toned figure.

The golden goddess’ perky bottom was nearly on display with the dress’ leg slit soaring past her hip.

Australian golden girl and Oscar nominee Margot Robbie changed into a frosty sequined sheer gown for the bash, completing her dazzling look with a disco ball clutch.

The 27-year-old, who lucked out on the Best Actress nod to Frances McDormand, kept her blonde tresses in a classy bob and sported natural makeup.

Silver sequins were also a big star on the carpet ahead of the party, with models Hailey Baldwin and Adriana Lima, who attended Elton John’s party, donning similar dresses.

Miley Cyrus and Aussie beau Liam Hemsworth walked the carpet together, looking every bit the Hollywood glamour couple as they held hands and posed for cameras.

Cyrus wore a Cruella de Vil style long dress while her actor partner sported a handsome black and white tuxedo.

Meanwhile, at Byron Allen’s 2nd Annual Entertainment Studios Oscar Gala, Katy Perry wowed the crowd so much so, that when a fire alarm went off mid-set, the guests thought it was part of her performance.

Meanwhile, Oscars’ official after-party, the Governors Ball, paid tribute to the film academy’s 90-year history. Antique cameras, scripts and props decorated the ballroom just upstairs from the Dobly Theatre, where the Oscars were presented.

Stacks of scripts and film tins served as backdrops for several bars inside the Roy Dolby Ballroom, where the orchestra played classic movie themes throughout the night.

Other historic displays included the 1935-era camera used to shoot Citizen Kane, animation cells from the first Pinocchio film, historic press cameras from the 1960s and a replica of an old movie makeup station. Costume illustrations, wigs and other memorabilia decorated the room in honour of the Oscars’ milestone birthday.

Mahershala Ali and Alejandro Gonzalez Inarritu were among those who enjoyed the tiny cheeseburgers, mini chicken pot-pies and extensive sushi bar.

The Governors Ball is also where Oscar winners can have their statuettes personalised with their name and category. Otherwise all the golden guys look the same.

Guillermo del Toro, who won for best director and best picture, sat with his two newly personalised Oscars on a sofa near the engraving table. He commandeered a couch near the trophy station with his friends, where they snacked on mini-tacos and chicken skewers.

Allison Janney also brought her statuette over for engraving. Barefoot, the actress toted her new Oscar to a nearby couch, where she sipped on a martini and a glass of white wine.

Other Governors’ Ball guests included Oscar winners Rita Moreno and Eva Marie Saint, who shared their table at the Oscars’ after-party.

Frances McDormand brought her son along for the Oscar-engraving experience - a cordoned-off area at the Governors Ball where winners have their trophies personalised while they sip champagne, protected from the party crowds. Other stars who had their Oscars personalized Sunday included James Ivory and Jordan Peele.

Hungry stars got a chance to indulge in food and drink after the nearly four- hour Oscar ceremony. Waiters passed food and appetizers, and various stations around the Ray Dolby Ballroom beckoned guests. There was a broad dessert bar, with crepes and tiny chocolate Oscars.

Mira Sorvino caused a bit of a traffic jam with her voluminous dress - no one wanted to step on it or even pass the Oscar winner as she sampled tequila at a Don Julio table.

Other guests included Christopher Walken, Alejandro Gonzalez Inarritu and Andy Serkis.

And everyone got an Oscar as they left the party - a seven-centimetre tall chocolate version.