Celebrity News September 10, 2015 Justin Timberlake Shows Off Cute New Photos of Son Silas on 'Tonight Show' Justin Timberlake's adorable son Silas stole the spotlight from him last night on “Tonight Show Starring Jimmy Fallon.” The 34-year-old singer shared new snaps of himself and wife Jessica Biel holding their baby son. .@jtimberlake brought baby pics! #FallonTonight pic.twitter.com/xdMP96cFrF @FallonTonight Justin gushed about fatherhood, “It is the most insanely amazing, most beautiful, unbelievable thing that can ever happen to you. He was 5 months [on Sept. 8].” In one pic, Justin, an avid golfer, was seen watching television with Silas. He said, “We were watching the PGA championship. We're working on his swing already.” On the same night, Justin and Jimmy were also spotted dancing to Beyoncé's “Single Ladies” at the U.S. Open. More Surprise! Selena Gomez & Justin Timberlake Join Taylor Swift at Final L.A. '1989' Concert FRESH PRINCES: Justin Timberlake and Alfonso Ribeiro Do 'the Carlton'