LeBron James Parties with Lakers Teammates After Magic Quits

Forget the terrible season -- or the fact Magic Johnson had just quit -- LeBron James and his Lakers teammates decided to party Tuesday night anyway ... and TMZ Sports has the footage.

LeBron -- along with teammates Rajon Rondo, Kyle Kuzma, JaVale McGee and more -- hit up Tao Restaurant in Los Angeles where Sheck Wes performed after the Lakers game.

Lonzo Ball was also at the event ... which was a launch party for the new "Twenty" app.

Of course, the Lakers lost to the Portland Trail Blazers earlier in the evening -- ending one of the worst seasons in Lakers history. Before the game, Magic Johnson QUIT as Lakers President of Basketball Operations.

During a bizarre impromptu meeting with reporters, Johnson essentially said he wasn't having fun being a team exec -- and wanted to go back to being a "free bird" who can't be "handcuffed."

He also mentioned that he wanted to be able to tweet about NBA players and topics without being fined by the league.