Derek Jeter got the band back together in NYC Tuesday night -- well, a couple of guys from the band -- when he reunited with some of his old Yankees teammates at a MASSIVE celebrity party.
Numba Two kicked it with CC Sabathia, Jorge Posada and Dellin Betances at Jeter's Turn 2 Foundation event at Cipriani.
Ne-Yo performed (he was awesome) in front of a star-studded crowd that included soccer legend Ronaldinho, Dave Winfield, Tiki Barber, Andrew McCutchen and Hoda Kotb.
Oh yeah, Derek's hot model wife, Hannah Jeter, was also there ... and she looked good!
The Turn 2 Foundation helps kids and teens avoid drug and alcohol addiction ... cool to see everyone come together for a good cause.