Gigi Hadid celebrated her 21st birthday with a celebrity-filled bash — including an appearance by Kendall Jenner's nipple ring.

RELATED: Gigi Hadid and More Stars Who Desperately Want You to Look at Their Underwear

The 20-year-old model was captured on sister Kylie Jenner's Snapchat showing off her racy outfit complete with a sheer lace bra, which failed to cover her intimate piercing.

https://www.instagram.com/p/BEx6EFsswy_/

Along with the KUWTK star, Taylor Swift showed off her wild side at the party held at LA hotspot The Nice Guy, wearing a sequined black mini dress with platform boots and a platinum blonde shaggy bob.

RELATED: Kylie Jenner Reveals She Loves Watching Herself on Snapchat

Gigi definitely knows how to throw a party. Click through the gallery below for more snaps from the supermodel's big night!