So it was a forgone conclusion that Barbie would be ritually slaughtered in public at the Oscars - just one for best song, a total slap in the face for the top grossing movie of 2023, with possibly the most boring  movie ever made taking home a chest full full of gold.

Thus after the roster of Original Song nominees performed earlier in the show, Gosling took to the stage to perform Barbie movie hit I'm Just Ken in a show-stopping performance. 

Opening the performance from his seat in the audience behind a giggling Margot Robbie, Gosling — sporting a sparkly pink suit with matching gloves — made his way to the stage to be joined by a troupe of cowboy-hatted dancers.

As the number shifted from power ballad to operatic rock, Gosling disappeared under giant Barbie masks, emerging in time for Guns and Roses guitarist Slash to let rip with a typically frenetic solo.

Gosling then descended into the crowd to pass the mic around for a singalong, first joined by Robbie, America Ferrera and Greta Gerwig before he made his way to Stone.

The performance ended with Gosling back on stage with the other Kens, including Simu Liu and Kingsley Ben-Adir.

Margot's revenge dress:

Stepping away from the Barbie pink once again, Robbie stepped onto the red carpet in a gorgeous black Versace dress.

There was some suggestion the outfit could be a nod to Princess Diana's iconic black revenge dress because Robbie was not nominated for the Best Actress award. 

Previous red carpet appearances from Robbie this awards season have been themed around iconic Barbie looks from past decades.

Emma Stone's broken dress:

After making her way to the stage to accept the Best Actress award, Stone opened her speech by warning the crowd that the back of her dress had "broken".

She blamed the I'm Just Ken moment for the costume drama.

A visibly shaken Stone — whose win is her second in the category — also told the crowd to avert their eyes as she walked offstage.

Messi a crowd favourite:

And no we aren't talking about the Argentinian footballer - The Anatomy of a Fall star looked adorable in the audience and was even spotted clapping for some of the winners. 

Sadly, there was no award for Best Good Boy at the Oscars. 

Best costume … without a costume

From Versace to vastly naked, John Cena took to the stage in nothing but a pair of sandals to hand out the Best Costume Design award. 

Cena tried at the last minute to bail out of the streaking bit before reluctantly coming on to the stage. 

The wrestling star asked host Jimmy Kimmel to help read out the awards — given he couldn't quite move the envelope without the show becoming R rated.

Barbenheimer rivalry ends:

Well, at least Emily Blunt and Ryan Gosling tried to end it. 

Gosling started by suggesting to Blunt it was time to end the rivalry.

Blunt agreed and said there wasn't much of a rivalry with the way the awards season had gone. But Gosling's Ken-splanation of why it's Barbenheimer and not Oppenbarbie didn't go down well: 

"I think you guys are at the tail end of that because you were riding Barbie's coat-tails all summer." 

Robert Downey Jr thanks 'terrible childhood' for first Oscar win

The Iron Man star won his first Oscar, taking the gong for Best Supporting Actor for his role in Oppenheimer.

"I would like to thank my terrible childhood and the academy in that order," Downey Jr said to open his acceptance speech. 

"I would like to thank my veterinarian … I meant wife Susan Downey over there.

"She found me a snarling rescue pet and you loved me back to life, and that is why I am here."

He admitted in the speech he needed the film more than it needed him. 

Also taking home his first Oscar tonight was Wes Anderson. He won Best Live Short Film for The Wonderful Story of Henry Sugar, but was not at the show to accept the award.

Solemn moment for Mariupol:

When director Mstyslav Chernov accepted the Documentary Feature Film award for 20 Days in Mariupol, his acknowledgement of the award came with a caveat.

"I'm honoured," Chernov said. "But probably I will be the first director on this stage who will say, 'I wish I never made this film.'

"I wish to be able to exchange this to Russia never attacking Ukraine, never occupying our cities.

"I wish to give all the recognition to Russia not killing tens of thousands of my fellow Ukrainians. I wish for them to release all the hostages, all the soldiers who are protecting their land, all the civilians who are now in their jails. But I cannot change the history. I cannot change the past."

The In Memoriam part of the ceremony was introduced in Russian with a clip from late opposition leader and activist Alexei Navalny.

In Alexei Navalny words, "The only thing necessary for the triumph of evil is for good people to do nothing," were flashed on screen.