Paris Hilton parties in sheer black velvet dress for Nicole Richie’s birthday: ‘Sliving moms’

The band is back together.

Nicole Richie celebrated her 43rd birthday this weekend with a group of famous friends that included sister Sofia Richie, Cleo Wade, stylist Jamie Mizrahi and, of course, BFF Paris Hilton.

For the occasion — which Richie dubbed VirgoFest — Hilton chose a black velvet-and-mesh Fleur du Mal dress ($495 $347) that showed off her curves.

The look, which Hilton paired with a black beaded choker necklace, features velvet panels across the chest and down the front and back, covering up all the right areas while leaving some exposed. Hilton, 43, added her own signature fingerless elbow-length velvet gloves.

The birthday girl, meanwhile, wore a slinky gold Saint Laurent slip dress ($4,900) and Sofia, who welcomed her first baby in May, chose a tartan Saint Laurent blouse ($5,556) with black trousers.

“So much fun celebrating with my Virgo Queens @NicoleRichie & @SofiaGrainge! 🥰 Loves it Happy Birthday Nicole!✨🎂✨,” Hilton captioned a series of photos on Instagram.

Fans were loving the reunion, with one commenting, “the duo back in action 😍💞” and plenty of others calling them “icons,” of course.

Even mom Kathy Hilton got in on the love, commenting an array of heart, birthday cake and kissing emojis.

Paris has been super busy as of late, releasing her second album, “Infinite Icon” earlier this month after filming the yet-to-be released “Simple Life” reboot with Richie.

The mom of two also had an eventful New York Fashion Week, where she got up to some hijinks with Kathy and sister Nicky, daring Tiffany Haddish to crash the runway at the Monse fashion show — and later saved a fan from a crushing mob of paparazzi and screaming onlookers at Alice + Olivia.

What can’t she do?