- This article is about the characters. For the guest stars, see 'N Sync.
| 'N Sync
| Band Information
|| J.C. Chasez|
| First appearance:
|| "New Kids on the Blecch"
'N Sync are a boy band who came to see the Party Posse.
They told the Party Posse than they had done a great show. They then dance over and say that they saw their band formation notice in the paper so they came. They brought the Posse a gift basket. They then had to go as their clothes were getting out of date and they had to get new clothes.
Later, 'N Sync turned up on the USS Sea Spanker to stop L.T. Smash from destroying Mad Magazine Headquarters. They started to teach the Party Posse a new song and dance routine to diffuse the situation. However, they were too late and Smash destroyed the building. After this, the rest of the band signed J.C. Chasez up to the Navy against his will.