Pop star Justin Timberlake took to Instagram to share the first picture of his new born son Silas. In the picture, Justin's wife Jessica Biel is holding Silas in her arms. "The Timberlakes are ready!!! GO GRIZZ! #GritNGrind #Playoffs #BabyGrizzROAR," Timberlake captioned the photo. The couple, that got married in Oct 2012, welcomed their first child on April 11.