More than 75 cowboy-hat-clad Kens — including Simu Liu — joined him on stage, with the group bringing the house down in what songwriter Mark Ronson told E! was an “absolutely bananas spectacle.”

Gosling started out the song in the audience as he sat behind his giggling co-star Margot Robbie and was later joined on stage by Guns ‘N Roses guitarist Slash.

He even held the mic up to members of the audience, including Greta Gerwig, Robbie and America Ferrera, with the Kens singing on pink stairs that paid homage to an all-male version of “Diamonds are a Girl’s Best Friend.”

As for his red carpet look, Gosling wore a custom black Gucci suit trimmed with silver sequins and a TAG Heuer watch as he walked the red carpet ahead of the awards show — though he did preview what was to come with pink socks, which he later sported on stage.

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Slash made a surprise appearance during the song.Chris Pizzello/Invision/AP

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Margot Robbie laughed as her co-star went into Ken mode.ABC

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The “Notebook” star accessorized with shades and pink socks.AFP via Getty Images
While his co-star Margot Robbie, who plays Barbie, has sported one doll-like look after the next this awards season, Gosling has played it on the safer side, wearing monochromatic suits in an array of colors.

He rocked a pale lavender jacket and trousers with a matching dress shirt to the 2024 Oscars luncheon last month and the same look, but in scarlet red, to the Director’s Guild Awards.

The “Notebook” actor traded bright colors for black and white versions of the outfit for the Santa Barbara Film Festival and Critics’ Choice Awards, respectively, wearing a black suit with white piping and a coordinating shirt to the 2024 Golden Globes.