By Kelsey Glein
Apr 19, 2015 @ 8:57 pm
Kevin Mazur/Getty Images

Silas Randall Timberlake has made his debut! Proud new dad Justin Timberlake shared an adorable snap of his glowing wife Jessica Biel and their brand new baby boy on Instagram today, and we can't get enough of his bright blue eyes and sleepy smile.

RELATED: Jessica Biel and Justin Timberlake Welcome Their First Child

Timberlake shared the photo as the family celebrated the NBA Playoffs, where the star's favorite (and hometown) team the Memphis Grizzlies took on the Portland Trail Blazers. And baby Silas was dressed accordingly, wearing a jersey featuring the basketball team's logo. The singer captioned the too-cute photo: "The Timberlakes are ready!!! GO GRIZZ!" Check out the picture below.

The Timberlakes are ready!!! GO GRIZZ! #GritNGrind #Playoffs #BabyGrizzROAR

A photo posted by Justin Timberlake (@justintimberlake) on

PHOTOS: Celebrities Courtside: Stars at NBA Games