Justin Timberlake Shares Photo with Son Silas on Father’s Day [PHOTOS]

Justin Timberlake shared a sweet photo of him with son Silas while he's on 'daddy duty.' He is celebrating his very first Father’s Day this year and is obviously super excited about it, seemingly more than ready to celebrate the holiday.

In the swoon-worthy snap, adorable baby Silas was seen wearing an adorable onesie that had “I Love Dad” written across his tiny behind.

"FLEXIN' on Fathers Day #HappyFathersDay to ALL of the Dads out there from the newest member of the Daddy Fraternity!! --JT" he captioned the sweet photo.

The 34-year-old pop singer and wife Jessica Biel have kept most of the details of their son’s life private. They first introduced him on Instagram shortly after Biel delivered their bundle of joy in April this year.

Justin's mom announced the baby's arrival through her Facebook account.

'My amazing son and his beautiful wife have given us the most precious gift in the world!' the excited grandma said.

'Silas Randall Timberlake! Named after my father and my son! Life is beautiful and we couldn't be happier! God bless you all and thanks for all the congrats!'

In his first social media exposure, the littlest member of the Timberlake wore a Memphis Grizzlies shirt, cheering on his dad’s home team.

Justin and Jessica wed in October 2012 after five years of dating.

Blake Lively also gave a paternal shout-out to another first-time dad, Ryan Reynolds. On Sunday, the actress posted a shot of the couple's baby girl James in honor of Father's Day.

The public has finally gotten another glimpse of their little angel. First her hand was seen in a charming photo and now she is seen along with the proud Ryan in full dad mode while her tiny feet dangling below.

"Since the day our baby was born, I've felt so strongly in my heart that you were most likely the father. #ILoveYouSoMuchItsSilly," the 27-year-old Gossip Girl star wittingly captioned the sweet snap.