In an unexpected surprise, Justin Timberlake popped up in the penultimate episode of Candy, the Hulu limited series starring his real-life wife, Jessica Biel. Sporting a slicked-back wig and a portly belly, Timberlake appears as Steve “Diffy” Deffibaugh, a sheriff’s deputy investigating the murder at the center of the five-part drama. As Biel’s character is the prime suspect in the brutal crime, it means the real-life couple share plenty of scenes together across the final two episodes. The Grammy-winning singer took to Instagram on Wednesday night to share some behind-the-scenes photos of himself and Biel in costume. “Belly’s fake, hair’s fake, mustache is real. Meet Diffy,” Timberlake captioned the photos. View this post on Instagram A post shared by Justin Timberlake (@justintimberlake) During a recent appearance on Jimmy Kimmel Live, Biel was asked about the possibility of working with Timberlake on-screen. Until now, the couple had never acted opposite each other.