Wedding Bells for Justin and Jess?

Justin Timberlake triumphed at his first New York Fashion Week show on Sept. 7, but the singer may have an even bigger project in the pipeline: a wedding!

Justin, revealed to friends at the 5th Annual Fashion Rocks concert in NYC on Sept. 5 just how serious he is about serious girlfriend, The Illusionist actress Jessica Biel.

According to an eyewitness, "Justin said that he is 'this close to being married' and then pinched his fingers together to demonstrate."

Another onlooker tells OK!, "He couldn't stop smiling at Fashion Rocks. He looked like a man that had everything in the world."  But the "SexyBack" singer was all business two days later at his William Rast Clothing Line's show in Bryant Park.

An audience member tells OK!, "Justin looked very humble and proud to be introducing his line at Fashion Week."

While Justin has denied any wedding rumors in the past, Jessica – who plays a new bride in Easy Virtue – can hear those wedding bells.

"I've never been someone who's like 'I have to, have to, have to have it," the pouting beauty said in the August issue of Harpers Bazaar. "But the idea of being with somebody I care about, who's my soulmate, that's groovy!"