The former *NSYNC band member joined 'Glee' alumnus Darren Criss on stage at Elsie Fest for renditions of the band's biggest hits It's gonna be JC. The surprise appearance and performance took place ...

NSYNC was undoubtedly one of the most popular music groups of the '90s and early 2000s, dominating the charts with hit singles like "Bye Bye Bye" and "It's Gonna Be Me." Despite their success, though, ...