Popsugar Celebrity Celebrity Halloween Costumes Jessica Biel Dressed Up as Justin Timberlake For Halloween Yep, Jessica Biel Really Dressed Up as *NSYNC Justin Timberlake For a Halloween Party 26 October 2019 by Karenna Meredith View On One Page Photo 5 of 6 ADVERTISEMENT () Start Slideshow Share This Link Copy ← Use Arrow Keys → 5 Previous Next Start Slideshow Celebrity Halloween CostumesCelebrity CouplesNSyncHalloween CostumesJessica BielHalloweenJustin Timberlake