Justin Timberlake and Jessica Biel post first photo of baby Silas

This is just too cute.

Just over a week after welcoming their first child, Justin Timberlake and Jessica Biel have released the first photo of their adorable son, Silas Randall Timberlake.

Justin posted a photo to Instagram yesterday of his wife cradling their baby, along with the caption: “The Timberlakes are ready!!! GO GRIZZ! #GritNGrind #Playoffs #BabyGrizzROAR”

Silas looked adorable in a Memphis Grizzlies jersey, Justin’s favourite basketball team.

"Jessica sees herself as a mom of boys, so it worked out perfectly," a source told Us Weekly.

The source claimed: "Justin is so excited, he doesn't know what to do with himself!"

Jessica gave birth recently after a very private pregnancy.

Justin had only confirmed the pregnancy news on his birthday when he posted a picture kissing Jessica’s bump.

The couple plan on bringing up their son in Montana.