Justin Timberlake shared the cutest photos of baby Silas, his 5-month-old son with wife Jessica Biel, on the Tonight Show -- see them here! Credit: Douglas Gorenstein/NBC

Now that is one cute Timber-baby! Justin Timberlake shared the cutest photos of baby Silas, his 5-month-old son with wife Jessica Biel, during his stop by The Tonight Show with Jimmy Fallon on Wednesday, Sept. 9.

The "Mirrors" singer, 34, revealed multiple snapshots of the little tot while updating Fallon on his experience with first-time fatherhood. "It is the most insanely amazing, wonderful, unbelievable thing to ever happen to you," Timberlake gushed about the experience.

In the pic, the "SexyBack" hitmaker hoists up his baby boy with one hand. Little Silas, meanwhile, gives the camera a wide-eyed, inquisitive smile with adorable big blue eyes.

Timberlake also shared a sweet shot of his wife, 33, giving their son a bath. The mommy-son moment featured a bathrobe-clad Biel planting a sweet kiss on Silas' cheek. "That's post-bathtime right there," he noted.  

The proud dad and avid golfer couldn't help himself with one final pic of Silas, watching golf with his dad at home. "We were watching the PGA Championship," Timberlake explained. "[He's a] good putter! We’re working on his swing, but he can putt, it's great... No, he can't hold anything."

Us Weekly broke news this past April that he and Biel welcomed their first child together. One week later, Timberlake posted the very first shot of his son on Instagram of Biel cradling Silas. "The Timberlakes are ready!!! GO GRIZZ!" he wrote of the Memphis basketball team. "#GritNGrind #Playoffs #BabyGrizzROAR."

A source told Us at the time that the new parents were ecstatic. "Jessica sees herself as a mom of boys, so it worked out perfectly," the insider said. "Justin is so excited, he doesn't know what to do with himself!"

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