Renee Zellweger was seemingly heard in the background of Ant Anstead's holiday video of his son Hudson.

Over the weekend, Anstead, 45, took to Instagram to share several snaps and an adorable video of his five-year-old son, and his girlfriend, 55, appeared to be spending Christmas with them.

Anstead shares Hudson with his ex-wife Christina Haack, to whom he was previously married for nearly two years before they divorced in 2021. 

He is also the father of two adult children — daughter Amelie, 21, and 18-year-old son Archie — both of whom he shares with his first wife Louise Storey. 

This comes just weeks after he revealed the secret behind his three-year romance with Zellweger in an exclusive interview with DailyMail.com. 

Alongside the caption of 'Christmas Day MAGIC,' Anstead shared photos of his son playing chess, making good use of his new telescope and putting together lego cars.

He also included a photo of Hudson admiring his new plasma ball lamp and a clip of him putting his head up towards the lamp with pink and purple lights, shouting in excitement: 'Look!'

Off camera, a man and a woman — presumed to be Anstead and Zellweger — could be heard laughing joyously at Hudson's excitement. 

'I can hear Renée’s laugh!' one person commented.

Another added, 'That is 100% Renée’s laugh. It’s distinctive and perfect.'

Anstead and Zellweger were first romantically linked in June 2021 after Zellweger made an appearance on an episode of Anstead's Discovery+ series, Celebrity IOU Joyride. 

The episode aired in August 2021, and later that same month, the pair confirmed their romance and made their red carpet debut as a couple at the Radford Motors Gala at the Lyon Air Museum in Santa Ana, California. 

In April 2023, the couple marked two years together, and Anstead posted a tribute to Zellweger in celebration of their second anniversary. 

He shared a series of photos with the Bridget Jones film series star on Instagram and wrote in his caption: 'Two years of magic.' 

Shortly after their two-year anniversary, a source close to the couple spoke about their future together. 

An insider told Us Weekly: 'They both want to settle down and create a home together.'

The source added: 'Renée loves how romantic, open and honest he is. She does say that it took her a while to find love again, but it was well worth the wait.'

'She's still giddy in love. He literally swept her off her feet,' they continued. 

A few months later, sources spoke about how her relationship with his children has also grown stronger. 

'Renée gets along really well with Ant's children, and they spend a lot of quality time together,' an insider revealed to the outlet in July 2023. 

'Despite being in the public eye, Renée and Ant love just hanging out at home with the kids, watching movies and making dinner together. They enjoy a very low-key lifestyle.' 

This year, Anstead praised his girlfriend and shared a sweet message to her while she was filming her upcoming Bridget Jones movie. 

The fourth installment of her iconic movie series, titled Bridget Jones: Mad About the Boy, will premiere on Peacock next year, just before Valentine's Day, on February 13. 

While she was working on the set over the summer, Anstead shared an Instagram post about traveling to the U.K. with his kids to visit her. 

Alongside a photo of his son Hudson on his shoulders at the airport, and referencing all three of his children, he wrote in his caption: 'Incoming... Ammo, Archo & Ren.'