Selena Gomez and her sister join Nicola Peltz and Brooklyn Beckham for early birthday dinner in LA

Selena Gomez celebrated her best friend Nicola Peltz’s birthday family-style on Saturday.

The Only Murders In The Building star, 30, brought her little sister, Gracie, 9, as her date to dinner with Nicola and her husband, Brooklyn Beckahm, held at Cecconi’s restaurant in Los Angels.

The Calm Down singer wore a casual look in straight-leg black pants with asymmetrically placed zippers down the legs, a black Ferrari sweatshirt and a three-strand vintage pearl necklace with a crystal or diamond clasp.

Casually chic: Selena Gomez, 30, and her sister Gracie, nine, look comfortably chic in coordinating outfits as they arrive for an early birthday dinner with birthday girl and friend Nicola Peltz and her husband Brooklyn Beckham on Saturday in Los Angeles

Selena wore her hair in a high bun and completed her evening makeup with a striking red lip. She added a bit of mystery, walking in wearing dark sunglasses.

Gracie looked adorable in a gray cashmere crewneck sweater, black leather skirt, and thick-soled Mary Janes.

The birthday girl, who turns 28 on January 9, showed off her curves in a sheer black dress with an asymmetrical hem that started at the thigh and ended below the knees.

Curves: Nicola, who turns 28 on January 9, showed off her curves in a sheer black dress with an asymmetrical hem that started at the thigh and ended below the knees Brooklyn, 23, kept her look simple, wearing black pants and a white T-shirt.

Inseparable: Selena and the Beckhams seem to have been inseparable ever since Nicola hosted a listening party to celebrate the debut of Selena’s documentary My Mind and Me back in November.

The Welcome to Chippendales actress showed off her toned legs in black tights and blue and pink floral boots with cutouts along the shin. She styled her brown hair in a high bun and accessorized it with diamond earrings.

Brooklyn Beckham, 23, her husband of eight months, kept her look simple, wearing black pants and a white T-shirt. She prepared for the cooler temperatures of the night by tying a white sweater asymmetrically under her arm and across her chest, and wearing a black leather coat.

A photo of Gracie and Selena kissing Nicola on the cheek at the party shows just how close the good friends have become in recent months.

Friendship: A photo of Gracie and Selena kissing Nicola on the cheek at the party shows just how close the good friends have become in recent months

Explaining the social media post, Selena wrote: ‘It’s not your birthday yet but let’s celebrate NOW!’ to which Nicola replied, ‘My God, my sisters!’

The besties seem to have been inseparable ever since Nicola hosted a listening party to celebrate the debut of Selena’s documentary My Mind and Me back in November.

The couple had an amazing winter holiday celebration in Cabo San Lucas, and even invested in matching ink, with the word ‘Angel’ tattooed on the inside of their arms, just below the elbow.

Sisters: Explaining the social media post, Selena wrote: ‘It’s not your birthday yet but let’s celebrate NOW!’ to which Nicola replied, ‘My God, my sisters!’