Rihanna stunned at the Yellow Pieces concert on Friday.

Take a bow for Rihanna’s latest look.

The Grammy winner stunned in a plunging black Saint Laurent dress while attending the Yellow Pieces concert during Paris Fashion Week Friday.

Rihanna posed in the Accor Arena wearing a vintage Vivienne Westwood coat with fur trim over her slinky gown, letting her mesh Savage X Fenty bra peek out from underneath.

Her straight, honey-blond locks rested down her shoulders and she accessorized with Messika diamonds and a Dior saddle bag.

At one point in the night, the “Umbrella” singer, 35, could be seen using her phone to record concert performances — which included her boyfriend, A$AP Rocky, Pharrell, J Balvin and many more — from the crowd.

Rihanna has been turning heads with her looks since she made a low-key arrival in the City of Love with her beau, also 35, and their two sons — RZA, 1, and Riot, 5 months — on Sunday.

The Grammy winner wore a plunging black Saint Laurent dress.

She topped off the look with a vintage Vivienne Westwood coat in the same color.

Before the Dior Haute Couture show Monday, the Fenty Beauty founder fangirled when she ran into Natalie Portman.

“You are one of the hottest bitches in Hollywood forever,” she told the “Black Swan” actress in a clip shared on social media, adding that she’s a “fan” of hers.

“You do the most innocent look and I’m like, ‘Ah!’”

Portman, 42, returned the praise, saying she might “faint” and “black out” after hearing the compliments.

At one point in the night, Rihanna could be seen using her phone to record concert performances from the crowd.

There were performances by her boyfriend, A$AP Rocky, Pharrell, J Balvin and many more.

The billionaire mogul rocked a printed puffer coat around her shoulders that was cinched in at the waist.

She accessorized her look with a matching midi skirt of the same print, a Dior bag, a pair of leather gloves, a baseball cap and a pair of white stiletto pumps.

On Wednesday, Rihanna and A$AP matched in leather as they met with French President Emmanuel Macron at the Élysée Palace.

Before the Dior Haute Couture fashion show last Monday, the Fenty Beauty founder fangirled when she ran into Natalie Portman.

The “Umbrella” singer rocked a printed puffer coat around her shoulders that was cinched in at the waist.VICTOR AUBRY/SIPA/Shutterstock

The billionaire mogul styled her jacket with a matching midi skirt, a Dior bag, leather gloves, a baseball cap and a pair of white stiletto pumps.