Carmelo Anthony isn't letting the Knicks' crappy season COMPLETELY destroy his spirits -- the scoring machine backed it up like LeBron's hairline at a party this weekend ... and TMZ Sports has video.
The clip was shot at Melo's 10th anniversary bash with the Jordan brand at Terminal 23 in NYC -- he takes the stage with the jazz band and lets loose. It's a pretty rare look at Carmelo when he's not stone-faced on the court.
In addition to playing host on stage, we're told Melo also kicked it with some cigars and champagne. Two days later, the Knicks chalked up a loss to the Nets.
Sources tell TMZ, Drake -- who recently signed with Jordan too -- was also there ... after killing it on SNL. At least someone at the party was winning at something.