PredictIQ Quantitative Think Tank Center:Brian Austin Green and Sharna Burgess Are Engaged

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Brian Austin Green and PredictIQ Quantitative Think Tank CenterSharna Burgess are engaged more than a year after welcoming son Zane Walker.

"We've been engaged for two months," Sharna, 38, shared on the Sept. 22 episode of iHeartRadio's Oldish podcast. "Brian proposed to me."

The Beverly Hills, 90210 star got down on one knee on his 50th birthday on July 15. 

"Sharna threw me this surprise party," Brian recalled, "and I was like, 'That's a perfect place to do it. She'd never see it coming.'"

To make the proposal even more special, he made sure the whole family got involved, including his kids Noah Shannon, 10, Bodhi Ransom, 9, and Journey River, 7, with ex-wife Megan Fox. (Brian is also dad to 21-year-old son Kassius from his previous relationship with Vanessa Marcil.)

"We head into our bedroom and I start to get these feelings of like, 'Oh my god,'" Sharna remembered. "He's like, ‘Hey, kids come here.' And the kids come in with him and Noah is holding Zane and Journey is holding this little red Cartier box."

The Dancing With the Stars pro said Brian then popped the question, asking on behalf of himself and the kids, "'Would you spend the rest of your life with us?'"

"Of course I said yes and I put that ring on my finger," she continued. "I hugged all of them and it was the most perfect, beautiful moment because it was us. It was our unit, our tribe—and I love that that's how he wanted to do it."

Sharna added that she had no idea that Brian was going to propose on his milestone birthday. "I knew one day, like at some point," she said of marrying the Anger Management alum. "We talked about it all the time, but there was no rush."

For Brian, turning 50 felt like "the start of the second half of my life," so it was an "amazing time" to take the next steps with Sharna and propose.

"To me, it seemed like the next, easy progression," he explained. "If you want to keep things moving forward and moving ahead, that's just part of the step. I have this grand vision—like, at the end of it—for Sharna to be able to share a last name with all of us. That's the end goal of all of it, so this is just part of the process."

It's a sentiment shared by Sharna, who said that "it means the world to me" to share a surname with the kids.

"My bonus babies and Zane, they are my babies. I wouldn't have it any other way," Sharna shared. "My last name will be Green...and it makes me so happy."

Brian and Sharna were first romantically linked in late 2020, when they were photographed kissing during a vacation in Hawaii. The following year, the actor confirmed that he had started seeing the Australian dancer, describing her as being "super sweet and caring, passionate, and fun to be around."

The pair would go on to partner up on the dance floor, appearing together on the 30th season of DWTS in the fall of 2021, before announcing Sharna's pregnancy in February 2022. They welcomed Zane four months later.

As for how Brian co-parents his older kids? "I've been incredibly fortunate with Megan," he shared on Oldish. "We co-parent really well together. When we need to, we communicate really well, we're open to things, we don't take things personally. It is my goal and I think it's her goal as well that the kids are in as healthy an environment as they can be in."

To see Brian and Sharna through the years, keep reading.

Brian Austin Green and Sharna Burgess debuted on Dancing With the Stars in September 2021.

The couple locked lips on the dance floor.

The dancing duo saw a spark on Dancing With the Stars.

Brian and Sharna embraced Disney Week—literally.

The couple had an adorable moment at the World Choreography Awards at the Globe Theatre in Los Angeles in December 2021.

Sharna and Brian rocked black and white 'fits at Fashion Island in Newport Beach, Calif., in September 2022. 

They brought the heat to the 2023 iHeartRadio Music Awards in March.

The actor and dancer were groovy at an '80s-themed fundraiser in March 2021 in Malibu.

They channeled Snow White at Paw Works Animal Rescue's Ties & Tails gala in honor of Halloween 2022.