Justin Timberlake and Jessica Biel share first photo of newborn son Silas Randall on Instagram

Justin Timberlake has finally shared the first photo of his child along with wife, actress Jessica Biel.

The It's Not a Bad Thing singer posted an image on his official Instagram account, in which the 32-year-old actress is seen holding their baby boy, Silas Randall Timberlake.

"The Timberlakes are ready!!! GO GRIZZ! #GritNGrind #Playoffs #BabyGrizzROAR," he captioned the image.

Biel and Timberlake who tied the knot in Southern Italy in October 2012, confirmed on 11 April that they had welcomed their first child.

Rumours that Biel was pregnant surfaced in October last year, when she was spotted in Los Angeles trying to cover her stomach with an over-sized scarf.

In December, the 33-year-old actor's former 'N Sync bandmate Joey Fatone had revealed that the couple were expecting a baby during an interview with InTouch.

Timberlake confirmed the pregnancy in January after months of keeping the news under wraps.

In another interview with Ellen DeGeneres in April 2013, Timberlake, who previously dated Britney Spears and Cameron Diaz, opened up about his relationship with Biel saying: "It's nice to marry your best friend. It suits me.

"Every once in a while I can catch a glimpse of her when she doesn't see me looking, and I have this moment where I'm like, 'If you never make a good decision...if you only make bad decisions for the rest of your life. You made one really good decision'," he added.