and showed off their impeccable sense of style as they attended the Lanvin Womenswear Fall Winter 2023-2024 show as part of on Sunday.
The singer, 38, bundled up in a grey floor-length coat, while wearing a stylish black satin suit underneath.
She boosted her height in a pair of chunky heels and carried a black rectangle handbag with gold detail.
Meanwhile, Halsey flaunted her incredible figure in a sheer black gown with a pair of pants and a bandeau top underneath.
The Without Me singer - who uses she/they pronouns - donned a pair of strappy heels and accessorised with dark green jewellery.
Gorgeous: Avril Lavigne and Halsey showed off their impeccable sense of style as they attended the Lanvin Womenswear Fall Winter 2023-2024 show as part of Paris Fashion Week on Sunday
Chic: The singer, 38, bundled up in a grey floor-length coat, while wearing a stylish black satin suit underneath
The mother-of-one, 28, styled their brunette locks poker straight while posing for a slew of sizzling snaps.
The gorgeous duo both opted for a bold makeup look, with dark green eyeshadow on their lids, teamed with a glossy nude lip.
Avril and Halsey sat front row for the show alongside Josephine Skriver, who looked effortlessly chic in a pale yellow blazer.
It comes after Avril and Tyga continued to fuel romance rumours on Thursday as they were seen arriving together at Leonardo DiCaprio 's party at Kuku restaurant in Paris.
Newly-single singer Avril attempted to keep a low profile in a black hooded jumper dress as she pulled up to the bash with the American rapper, 33 - shortly after her devastated fiancé Mod Sun broke his silence on their split.
Meanwhile, Tyga - the ex-boyfriend of Kylie Jenner - kept things casual in a black and brown co-ord complete with blingy chain as he joined the rocker at Leo and Richie Akiva's star-studded party.
The pair arrived at the event in a blacked out people carrier and made no attempt of hiding their closeness as they climbed out within seconds of each other.
Tyga and Avril were surrounded by security as they made their way into the building together, with a video showing their team attempting to stop them from being filmed.
Stylish: She boosted her height in a pair of chunky heels and carried a black rectangle handbag with gold detail
Incredible: Halsey flaunted her incredible figure in a sheer black gown with a pair of pants and a bandeau top underneath
Stunning: The Without Me singer - who uses she/they pronouns - donned a pair of strappy heels and accessorised with dark green jewellery
Glam: The gorgeous duo both opted for a bold makeup look, with dark green eyeshadow on their lids, teamed with a glossy nude lip
Pals: Avril and Halsey sat front row for the show alongside Josephine Skriver, who looked effortlessly chic in a pale yellow blazer
The Complicated hitmaker put on a leggy display in her jumper dress, teaming it with chunky black heeled boots and an oversized black bomber jacket.
Her blonde locks were seen peeking out beneath her hood, while she rocked her signature black eyeliner and plenty of mascara.
The duo appeared in good spirits as they prepared for good night with other star's at Leo's bash - who coincidentally caused a stir with his own arrival as he turned up alongside rumoured love interest Rose Bertram, 28.
It comes a day after Avril stepped out in thigh-high boots at the Courrèges show during Paris Fashion Week on Wednesday, following her shock split from fiancé Mod Sun.
The singer was once again joined at the event by Tyga after they had a 'cosy night out' together last Tuesday.
The outing comes after musician Mod Sun said he was 'blindsided' when the singer called it quits.
The couple went their separate ways last week after a two-year romance - with his representative informing Page Six both he and Avril 'were together and engaged as of three days ago when he left for tour.'
Avril was later seen having dinner with Tyga, 33, and pals, where she shared an embrace with the rapper before they departed in the same car, TMZ reports.
Avril's outing comes after Mod Sun broke his silence on his split from his fiancée and revealed his heartbreak on Tuesday.
The musician, whose real name is Derek Ryan Smith, took to Instagram with an emotional post, writing: 'In 1 week my entire life completely changed…
Bold: Camélia Jordana turned heads in an eye-catching orange coat and matching heels
Beauty: Josephine Skriver and Lisa Rinna both opted for ultra-chic looks, which consisted of a blazer, shorts and heels
Amazing: Aure Atika donned a cream blazer and matching shorts as she sat front row at the lavish event
Fashionista: A model walks the runway during the Lanvin Womenswear Fall Winter 2023-2024 show
'I just know there's a plan for it all. I'll keep my head up + always listen to my heart, even when it feels broken.
'Being surrounded by love every night on tour has been an absolute blessing. I have the best friends in the entire world, thanks for always having my back. See you on stage.'
TMZ reported that Avril had called off their engagement after the couple were 'on and off' for the past couple months.
However, the songstress and the Bones singer were recently spotted attending a pre-Grammys party earlier this month, and were seen catching up with other stars such as Diplo.
While what exactly led to the split remains unclear, the tabloid says neither party were unfaithful to one another.
News of the split comes just one day after Avril was spotted grabbing dinner with Tyga and several friends at Nobu in Malibu, where she was seen sharing an embrace with the rapper before departing in the same car together, according to TMZ.
Insiders told the site the two have been good friends for some time but are nothing more.
Speaking with People , sources re-iterated Avril and Mod had been on-off for some time and that she is strictly friends with Tyga.
'Avril and Mod Sun have been on and off for the past two months, but are no longer together as a couple,' the insider said.
A source also told the outlet of her friendship with Tyga: 'Avril and Tyga are genuinely friends and nothing more. There was absolutely no third party involved in the split.'
Upset: Avril's outing comes after Mod Sun broke his silence on his split from his fiancée and revealed his heartbreak on Tuesday
Blindsided: TMZ reported that Avril had called off their one year engagement after the couple were 'on and off' for the past couple months (Pictured in August 2022 in Los Angeles)
The two stars were first romantically linked back in December 2020, with Mod Sun proposing to Lavigne in Paris last year on March 27.
At the time, Avril recalled the special moment and expressed to People , 'It was the most perfect, romantic proposal I could ever ask for. We were in Paris on a boat in the Seine River.'
'We had a violin player, champagne and roses. It felt like time stood still, and it was just the two of us in the moment,' she further gushed.
'I knew we had a very strong unstoppable connection from the first week of writing and working together in the studio. Immediately,' the talented singer later added. They had initially crossed paths at a songwriting session.