Leonardo DiCaprio, not Julia Gillard, was the ghost of Australian politics on Wednesday.
First he called us out over the protection of the Great Barrier Reef, and then after dark Parliament's Great Hall was transformed into his alter ego Jay Gatsby's bachelor pad for the annual Midwinter Ball.
While Leo appeared to have an impact on the decor and Great Gatsby theme of the night, many were wondering if austerity-loving Treasurer Joe Hockey had decreed the dress code to reflect his economic vision, as black, black and more black walked down the carpet-less red carpet in Canberra.
Foreign Minister Julie Bishop, following her National Press Club address just hours earlier, channeled Kim Kardashian in a floor-length black sequined gown reminiscent of the Givenchy bib-fronted wedding dress the "number one person on Instagram" donned for her recent wedding to Kanye West.
For the record, Ms Bishop wore it better.
Locally designed gowns were the look de jour for other high-profile guests. Margie Abbott looked sleek in midnight blue Simona, Speaker Bronwyn Bishop – with trademark bouffant and pearls – rocked a body-hugging black number by Blooms.
Australian Women's Weekly editor Helen McCabe modelled new-season Carla Zampatti, as did Liberal hot-shot Fiona Scott.
"But this is from, like, four years ago, it's been worn a lot," Ms Scott said.
The face of Channel Nine's NRL coverage Erin Molan was a surprise guest, choosing to forgo watching Origin to accompany her father, Major-General Jim Molan, because "he works for [Immigration Minister] Scott Morrison," she said.
The newly single sports journalist, wearing a bone-coloured lace dress by Amy Taylor, brought a little bit of Logies glamour to the annual political knees-up.
"I didn't even realise this was on the same night as Origin until I double-checked the date, but I couldn't stand my Dad up," she told Fairfax Media. "Luckily I've got my phone so I'll probably be glued to that all night."
Chloe Bryce, wife of Opposition Leader Bill Shorten and daughter of former governor-general Quentin Bryce, made a splash in a bold powder blue column gown by a little-known designer she discovered in Mr Shorten's Melbourne electorate of Maribyrnong, Leiela by Lucy Laurita.
Midwinter Ball debutante Clive Palmer, with his Rolls-Royce Phantom in the parking lot, abandoned the Onassis knot he usually wears for sitting weeks and pulled on a pre-tied bow tie.
"Well if I wore it again they'd be no news, so I'm just making your job easier by mixing it up," the keeper of the Titanic II flame said as he hurried inside. "I'm all about keeping it fresh."
The closest anyone came to a wardrobe malfunction was Qantas representative Olivia Wirth when her purse broke open and her cigarette lighter entered the ballroom before she and new husband, former Australian Workers' Union boss, Paul Howes did.