Question: nsync how old are they?
Answer: Chris was the oldest member of the boy band at 23 (almost 24), followed by JC (19), Joey (18), Lance (16), and Justin (14). As for the band's unique name? That was Justin's mom's idea. When *NSYNC appeared on Larry King Live in 2001, JT said his mom commented on how "in sync" they sounded, and the name stuck.