Late-'90s nostalgia overload!
Justin Timberlake, Lance Bass, Joey Fatone, J.C. Chasez, and Chris Kirkpatrick decided to have a little backstage fun before the mini reunion by getting their hacky sack on a la Freddie Prince Jr. in She's All That!
It was always a tradition for the group to play the game before their shows, and they reportedly used the same bean bag ball from way back when!
Ch-ch-check out the adorbz warm up before the big reunion…AFTER THE JUMP!!!