For all the jokes, laughs and lunacy Margot Robbie brought to Saturday Night Live‘s season 42 premiere last night, there was at least one serious moment.

But it was subtle.

If you weren’t paying attention when Robbie introduced The Weeknd’s second musical performance of the night, you might have missed the details of her black t-shirt.

Robbie’s shirt read “Say ‘I Do’ Down Under,” along with a map of Australia in rainbow colors.

Yesterday in SNL Margot Robbie wore a t-shirt supporting marriage equality in her country #QueenRobbie #Australia

— Mariola Boo (@MariolaBoo) October 2, 2016 Read more…

More about The Weeknd, Say I Do Down Under, Joshua Sasse, Kylie Minogue, and Kelly Ripa

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Margot Robbie shows support for marriage equality in Australia on ‘SNL’ season premiere