The actor, 43, dressed in a hot pink suit and black cowboy hat, kicked off his performance of the Oscar-nominated song “I’m Just Ken" from the audience, where his Barbie costar Margot Robbie ...

Amir Hamja/The New York Times Wearing a sparkling pink suit and a cowboy hat, Gosling started out in the audience serenading his “Barbie” co-star Margot Robbie, who couldn’t contain her giggles.