IT'S FINALLY HAPPENING!!!
Carmelo Anthony is teaming up with his bestie LeBron James -- the 10-time All-Star just signed a 1-year deal with the Los Angeles Lakers!!!
Of course, LBJ and Melo have been tight for 20 years ... but aside from Team USA action, the two never suited up for the same NBA team.
UNTIL NOW!!!
Melo's manager Bay Frazier made the news official on Tuesday ... but the official terms of the deal have not been announced just yet.
Anthony is 37 years old now, but the guy has proven he can still hoop -- averaging 13 points a game and playing a key role with the Portland Trail Blazers last season.