Jessica Biel is celebrating her "little man" on his special day.
The 38-year-old took to Instagram to share an adorable birthday tribute to her 5-year-old son Silas, which she shares with husband Justin Timberlake.
"This little man is 5 today! We're at home, covered in legos and birthday cake right now... but I just found this pic on my phone from last summer and it made me so happy," Biel wrote on social media, alongside a picture of herself carrying her son Silas. "To celebrate his big birthday, we're supporting @savethechildren and @feedingamerica, who are doing so much good work to keep kids and families healthy and fed during this time."
Aside from sharing that she'd be supporting organizations Save the Children and Feeding America, the actress urged followers to "scroll through your old pictures today and post something that brings you a little bit of joy."
She concluded her post, "sending lots of love to you all."
While the couple is notoriously private about sharing photos of their son on social media, that hasn't stopped the proud parents from gushing about their son.
Last year, during an episode of The Ellen DeGeneres Show, Biel opened up Silas' funky personality. "Now he is telling the joke and gets the joke, which is terrifying," the actress shared with host Ellen DeGeneres. "He was...doing a bit about, 'I don't like waffles anymore. I don't like waffles.' and Justin goes, 'What? What do you mean, you don't like waffles? Are you insane?' and we were in St. Louis, and that's what he said. Justin goes, 'Are you insane?' He goes, 'I'm in St. Louis.' That's a good joke. I'm stealing that joke. It was really impressive."
"So he's doing stuff like that, he's building LEGOs, he loves LEGOs, swimming," Biel added about her son.
Check out more of Justin and Jessica's cutest family moments in our gallery below!