Justin Timberlake: 'Runner, Runner' in New Jersey!

Justin Timberlake hangs out on the set of his upcoming flick Runner, Runner on Friday (December 14) in Princeton, NJ.

The 31-year-old actor caused quite the frenzy in the suburban town – according to reports, onlookers lined the streets to get a glimpse of the entertainer!

PHOTOS: Check out the latest pics of Justin Timberlake

Runner, Runner, which also stars Ben Affleck, is set to be released in theaters on September 27, 2013. Ben and Justin were spotted filming the flick in Puerto Rico over the summer.

10+ pictures inside of Justin Timberlake getting ready to film Runner, Runner in NJ…