Macaulay CulkinandBrenda Songare headed to the altar!

The couple of four years (and new parents to 9-month-old sonDakota) are engaged, a source tells PEOPLE.

Song, 33, was photographed sporting a diamond ring on her left hand while out and about in Beverly Hills, California, on Monday.

Culkin, 41, and Song met on the set ofChangelandin Thailand, and were first romantically linked when they werespotted out in July 2017grabbing dinner at Craig’s, an Italian restaurant in Los Angeles.

The next month, Song posted a group photo to Instagram in which she posed alongside Culkin.

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Brenda Song.G.E.D / BACKGRID

<em>PREMIUM-EXCLUSIVE</em> Macaulay Culkin&rsquo;s girlfriend Brenda Song is spotted wearing a HUGE ring on that finger!

The couplewelcomed their first child, son Dakota, in April of last year. They named their son after Culkin’s late sister Dakota.

For more on Macaulay Culkin and Brenda Song’s engagement, listen below toour daily podcast on PEOPLE Every Day.

“We’re overjoyed,” Culkin and Song said in a brief statement about the arrival of their first child.

Song and Culkin keep their relationship private on social media, although theDollfaceactress shared a special Instagram message to her beau in August 2020 onhis 40th birthday.

Macaulay Culkin and Brenda Song.Kevin Mazur/Getty

Macaulay Culkin, and Brenda Song attend the sixth biennial Stand Up To Cancer (SU2C) telecast at the Barkar Hangar on Friday, September 7, 2018

“Happy 40th birthday to this magical being,” shewrote in the caption. “I could sit here and write endlessly about how wonderful, kind, loving, genuine, loyal, honest, brilliant and hilarious you are, and how grateful I am that I get to share and do this life thing with you.”

In 2018, Culkin spoke about his intentions of building a family with Song during an appearance onThe Joe Rogan Experiencepodcast, saying thathe wanted to “make some babies.”

“This one’s a good one, so I’m probably going to put some babies in her in a little bit,” he said, laughing. “I mean, we’ve definitely been practicing.”

TheHome Aloneactor continued, saying he and Song have “a good life.”

“I have a pretty little family — a pretty girl, a pretty dog, a pretty cat and all that stuff. We’re gonna move,” he said at the time. “We’re doing the house thing and all that kind of stuff.”

The marriage will be the first for Song, while Culkin was previously married to Rachel Miner, from 1998 to 2002.

source: people.com