Justin Timberlake and Jessica Biel’s 2 Kids: All About Silas and Phineas

Justin Timberlake and Jessica Biel welcomed two sons after marrying in 2012

Justin Timberlake and Jessica Biel are raising two boys.

The couple, who have been married since 2012, share two children: Silas, 10, and Phineas, 4.

Though Biel and Timberlake are Hollywood stars, they prefer to keep their sons out of the spotlight.

“I try to be conscious of making sure we can live a life where we’re not weirdly private,” the “Mirrors” singer said during an appearance on the Armchair Expert podcast in 2021. “But we’re conscious of making sure they can be kids for as long as possible and not have the weight of somebody else treating them differently because of something that their parents do.”

Just two days before Timberlake was arrested for driving while intoxicated in the Hamptons on June 18, 2024, he celebrated Father’s Day with a sweet post about Silas and Phineas on Instagram.

“My 2 greatest gifts. I learn more about myself everyday just because you both chose me to be your Daddy,” he wrote. “I will always be there for you through your peaks and valleys… to lift you up and show you how high you can take this life and to pick you up when you fall. I love you both so much. Thank you for giving me my biggest purpose.”

Here’s everything to know about Justin Timberlake and Jessica Biel‘s two kids.

Silas Timberlake, 10

Timberlake and Biel’s first child, Silas Randall Timberlake, was born on April 8, 2015. The couple was fairly tight-lipped about their baby’s arrival, with reps only confirming to PEOPLE that Biel and Silas were doing well and that Timberlake was “ecstatic.” Silas was named after Timberlake’s maternal grandfather, Bill Silas Bomar. He also shares the same middle name, Randall, as his father.

When Silas was 6 months old, Biel opened up about motherhood on the Today show, saying, “It’s an amazing, amazing experience. Incredibly hard — the hardest job in the world, and I’ve never been more thankful and grateful to my own mother.” She also called her infant “amazing” and “wonderful.”

Although Timberlake has several Grammys to his name, Silas is seemingly unfazed by his father’s success. While speaking to Jimmy Fallon in 2021, Biel said of her then 6-year-old, “Whenever he hears Daddy’s song he’ll go ‘Oh yeah, that’s Dad. No big deal, whatever.’ “

The Candy actress even admitted she can’t get Silas to watch her children’s show, Pete the Cat. “I tried to get him to watch the show, he will not watch,” she revealed. “And yet he says, ‘Hey Mom, hey Mom, do one of those voices from the show’ and I’m like ‘But you’ve never seen the show you don’t even know.’ He’s just like ‘just do it Mom,’ so I’ll do one of the voices and he’ll be like, ‘cool Mom, cool.’ “

After Biel released her children’s book, A Kids Book About Periods, she told PEOPLE that she and Silas had started reading the book together and that it was “really cool to see him listening.”

“He was so cool about it. I was like, ‘Oh my God, score. We did it,’ ” Biel said. “That was the first step in much bigger conversations and deeper conversations that I hope to have with him. And that’s exactly why I wrote this book.”

In August 2024, Silas made a rare public appearance with Biel at the US Open in New York City. The mother-son duo watched Karolína Muchová defeat Naomi Osaka.

Phineas Timberlake, 4

Phineas Timberlake, Biel and Timberlake’s second child, was born in the summer of 2020. However, it wasn’t until a January 2021 appearance on The Ellen DeGeneres Show that Timberlake opened up about his baby for the first time.

“He’s awesome and so cute. Nobody’s sleeping,” Timberlake said. “But we’re thrilled. We’re thrilled and couldn’t be happier. Very grateful.” When Timberlake was asked how Silas was doing as a big brother he replied, “Right now, he’s very much liking it. Phin can’t walk yet or chase him down. So we’ll see what happens.”

A few months later, Biel confessed to having a baby in secret on Dax Shepard‘s Armchair Expert podcast, saying, “I had, like, a secret COVID baby. It wasn’t like it was supposed to be a secret. It was, just COVID happened, and then I went to Montana with my family and never left.”

She also revealed Phineas was born during the summer of 2020 and she wasn’t sure if Timberlake would be allowed in the hospital for the birth because of COVID-19 restrictions. “I was really getting nervous about that situation,” she said. “But yes, he was allowed. I think if I had to be there alone, that would have been horrible. I would have been really scared.”

The Sinner star also talked about how much harder having two children is versus one. “Someone said to me, ‘Two is like having a thousand,’ and that’s exactly what it feels like,” she said. “The balance of everything is very different and super hard.”

When asked about the idea of her kids going into show business during the same interview, Biel wasn’t thrilled with the idea. “My knee-jerk reaction is ‘Oh God, no. Please no.’ But then, I look at these kids and I’m like, ‘Oh (expletive), they’re probably going to be musical.’ What are we going to do? Like, not let them play the piano? Or not let them take a voice lesson if that’s their passion?”

She continued, “I don’t want to be that parent to stifle a dream, but, man, if my kid would just be like, ‘Let’s go learn about corn in Iowa,’ (I’d be like), ‘Great.’ I would so much rather them be an engineer or something.”