They stopped. They dropped. They shut ’em down AND opened up shop.

Usain Bolt and Dwyane Wade went all the way back to ’98 at a nightclub in Greece Tuesday night — grabbing the mic and busting out DMX’s legendary “Ruff Ryders’ Anthem” … and it was AWESOME!

WATCH VIDEO BELOW:

D-Wade’s in Mykonos for an anniversary trip — no word on why Bolt’s there — but they met up behind the DJ booth in a Mykonos nightclub and partied like they were old friends.

We’re sure DMX woulda loved to have been there too … if he wasn’t on house arrest.