Sam Smith wore lace and silk lingerie for the Attitude Awards ceremony on Wednesday night.
The 27-year-old singer, whoÂ prefers to be referred to by gender-neutral pronounsÂ â€œtheyâ€ and â€œtheirâ€, was awarded the Attitude Person of the Year award at the London event.
They wore a forest green silk negligee paired with a lace robe and matching loungewear trousers. On their feet, they wore black platform heeled boots â€“ which look like the sameÂ Gucci pair they wore to the 2019 GQ Awards.
The glamorous look was completed with winged black eyeliner and a clear lip gloss.
Smith later shared the outfit on Instagram, captioning the image: â€œI went to an award show in my underwear last nightâ€.
Smithâ€™s followers appeared to approve of outfit: the post has received almost 400,000 likes at times of writing.
Comments included: â€œLove love loveeeeâ€, â€œThis gives me LIFEEEE!â€, â€œiconicâ€ and â€œYou are my favourite kind of divaâ€.
Smithâ€™s lingerie is fromÂ Menagerie, a line of â€œintimates and formal nightwear designer for male formâ€.
According to theÂ brandâ€™s Instagram account, it is â€œreclaiming a manâ€™s right to adornment and beauty in fashionâ€.
This isnâ€™t the first time Smith has experimented with breaking gendered fashion norms.
Last month, they wore a pair of heeledÂ Shaun Ross x United Nude Limited Edition Collaboration BootsÂ at theÂ premiere of â€˜Judyâ€™ in Beverly Hills.
Keen to show them off, Smith took to Instagram to share a clip of themselves strutting away in the killer look.