Justin Timberlake joins NSYNC for special occasion

Singer Justin Timberlake reunited with his former

NSYNC

band members

JC Chasez

, Chris Kirkpatrick, Joey Fatone and Lance Bass to celebrate Chasez's birthday.

The 35-year-old actor shared a picture of himself along with the four boys on Instagram, captioning it, "JC's 40th... And, if you don't know now you know..." The boys have made their reunions less since their split in 2002.


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