Selena Gomez celebrated her 31st birthday on Saturday with a lavish, star-studded bash.

The Only Murders in the Building star shared a glimpse into her party by posting a number of snaps to her Instagram, with a caption that simply read ’31.’

Justin Bieber’s ex sizzled in a fiery red structured mini dress with floral details as she mingled with A-list pals including Paris Hilton, Christina Aguilera, Karol G and Sabrina Claudio.

Selena — who was recently linked to The Bear star Jeremy Allen White — added some height to her look with a pair of strappy black heels that featured red floral embellishments in the back.

The beauty wore her luscious black tresses pinned up for the occasion and accessorized with chic hoop earrings.

Birthday girl! Selena Gomez celebrated her 31st birthday on Saturday with a lavish, star-studded bash

Celebrating: The Only Murders in the Building star shared a glimpse into her party by posting a number of snaps to her Instagram, with a caption that simply read ’31’

Living it up! Another shot saw Selena embrace her model friend Connar Franklin as they grooved on the dance floor

As for glam to beauty oped for light bronze eyeshadow and nude lipstick.

Among a number of snaps shared by the star was one of her blowing out the candles on her splendid red and white floral birthday cake.

Selena also shared a snap with Paris, who looked lovely as ever in a floral dress and a beret. The duo were seen posing with record producer Benny Blanco.

Another snap saw Selena in the company of Sabrina and Carol. Sabrina sizzled in a navy mini dress while Karol wore a blush number that matched her light pink hair.

Pop sensation Christina was pictured giving Selena a hug as they posed for a black and white snap together at the party.

Another shot saw Selena embrace her model friend Connar Franklin as they grooved on the dance floor.

After her bash Selena enjoyed a viewing of the new Barbie movie with her friends.

The star rocked an all-pink look with a feather trim, as well as a fun pink cowboy hat inside of a theater.

Later on the beauty enjoyed dinner and drinks with her closest ones as well.

Her pals also sported pink looks in honor of the newly-released Barbie film.

A-list crowd: Among her A-list guests was Paris Hilton who looked lovely as ever in a floral dress and a beret. The duo were seen posing with record producer Benny Blanco

Cute: Christina Aguilera was seen giving Selena a hug as they posed for a snap together at the party

Famous pals: Sabrina Claudio and Karol G also attended the bash. Sabrina sizzled in a navy mini dress while Karol wore a blush number that matched her light pink hair

Catching up: The Rare Beauty founder showed off her moves as she danced with Karol in another photo

Strike a pose! The Disney star posed for a number of photos with her friends

Staying warm: The actress later covered up with a black blazer as she continued to celebrate with friends

Yum! Selena’s cake was brought out as guests watched

Overwhelmed: Selena placed a hand over her mouth as she gazed at her beautiful cake with its sparkling candles

Fun night! Selena also shared a number of snaps to her Stories

Earlier in the day the star shared another birthday post while asking her fans to help others.

The actress and singer, who has been spending some quality time with her little sister Gracie recently, shared a photo of herself as she blew out the candles on a chocolate S-shaped cake.

The confection was decorated with large pink flowers.

‘I am thankful for so much in my life,’ she wrote next to the photo, which showed her sitting on a bed.

The Ice Cream singer wore a pink shirt and styled her hair in long waves.

The Hotel Transylvania star accessorized with large hoop earrings and stacked pearl necklaces.

‘One of the things I am most thankful for,’ she continued, ‘is the work we’ve been able to do with the Rare Impact Fund through @rarebeauty.’

The fund has a goal of raising $100 million over the next decade to ‘expand access to mental health services and education for young people around the world.’

One-percent of all proceeds from sales of Selena’s Rare Beauty products are donated to the fund.

Come on Barbie, let’s go party! After her bash Selena enjoyed a viewing of Barbie with friends. The star rocked an all-pink look with a feather trim, as well as a fun pink cowboy hat

Movie night: She shared a snap of the movie screen

Dinner and drinks: The beauty enjoyed dinner and drinks with her closest ones as well

Barbie vibes: Her pals also sported pink looks in honor of the newly-released Barbie movie

The Lose You to Love Me artist lauded her fans revealing, ‘Because of YOU we’ve been able to raise awareness and increase access to mental health services for young people.

‘This is my true passion in life.’

The Spring Breakers star said rather than gifts, ‘if you want to do something for my birthday, please donate to the Rare Impact Fund. If you have the means, consider donating to help us make a difference. I LOVE YOU ALL!’

On Rare Beauty’s Instagram page, a montage of video shots was put together to honor the company’s founder.

‘Selena is the heart of Rare Beauty — guiding with her mission to breakdown unrealistic beauty standards and raise awareness + increase access to mental health resources.’

She inspires us to be our authentic selves and simply never fails to make us laugh.

Forever singer Angelic Montero send her good wishes writing, ‘your so beautiful, happy birthday queen.’

One fan summed up the feelings of Selena’s many followers.

‘Happy birthday to the most beautiful soul I have ever seen! I have never met you before but just say seeing you makes me soo happy!’

‘We are so great full to have someone like you. I wish you the happiest birthday and hope you are blessed with many more! WE LOVE YOU SELENA!!!’

Among those who wished Gomez ‘happy birthday’ was her BFF Nicola Peltz Beckham, the actress and wife of Brooklyn Peltz Beckham.

Twice the celebration: Earlier in the day the star shared another birthday post while asking her fans to help others

Flashback: Rare Beauty honored the company’s founder with some throwback video clips to wish her a happy birthday. Proceeds from Rare Beauty products fund the Rare Impact Fund to ‘expand access to mental health services and education for young people around the world’

Heart: The video honored Selena as ‘the heart of Rare Beauty — guiding with her mission to breakdown unrealistic beauty standards and raise awareness + increase access to mental health resources’

Heartwarming Birthday Tribute: Among those who wished Gomez  (right) ‘happy birthday’ was her BFF Nicola Peltz Beckham (center), the actress and wife of Brooklyn Peltz Beckham (left), who posted a heartwarming tribute on Instagram to express her love for her close pal

In heartfelt birthday tribute, Nicola, 28, posted her photo on her Instagram account of herself, Brooklyn, and Selena laying down on a net on a yacht, where the ‘throuple’ got cozy.

‘Happy birthday to my soul sister @selenagomez 🤍. I love you more than you know. I am so blessed to have you by my side in this life thank you for being such a beautiful light in this world 🤍. I hope your day is so perfect and all your wishes come true 🤍.’ Nicola wrote in the caption of her birthday Instagram post to Gomez.

While it remains unknown how and when the two friends first met, Selena and Nicola first started posting each other on social media towards the end of 2022 Since then, both have spent tons of quality time together, along with Brooklyn.

The friendship between Selena and Nicola is so tight to the point that they have matching tattoos.