Chappell Roan has laughed off the reaction to the revealing outfit she wore on the Grammy Awards red carpet on Sunday.

The US pop star removed her red chiffon cape on the red carpet to reveal a matching draped dress hung from nipple rings, leaving virtually all of her top half exposed.

The Mugler ensemble was one of the most talked-about outfits at this year's ceremony.

Giggling because I don't even think this is THAT outrageous of an outfit, the star posted on Instagram. The look's actually so awesome and weird. I recommend just exercising your free will it's really fun and silly :D.

She added: Thank you for having me @grammys and those who voted for me! Some fans praised Roan's style, describing her as a goddess and an icon in response to her own Insta post.

Referencing Justin Bieber's performance on Sunday wearing just boxer shorts, one wrote: If Justin can perform in his underwear without anyone batting an eyelid, you can rock pierced pasties diva. Misogyny. However, others found her outfit was not to their taste.

Roan was nominated for two Grammys on Sunday for record of the year and best pop solo performance, both for her hit The Subway, but she came away empty-handed. Known for her individual style and hits including Pink Pony Club and Good Luck, Babe!, Chappell is actually the alter-ego of the more reticent Kayleigh Amstutz.

Her latest outfit continues the trend of celebrities wearing sheer and revealing looks on red carpets. Chappell's fashion choice illustrates a shift towards embracing body positivity and self-expression in the music industry.