Leonardo DiCaprio, Tobey Maguire and a bevy of other A-listers pulled up to the Lakers game Tuesday night and were treated to history ... as LeBron James became the first-ever NBA player to score 50,000 points right before their eyes!!
The milestone was reached in the first quarter of the Lakers' 136-115 win over the New Orleans Pelicans at Crypto.com Arena ... when James hit a 3-pointer off a pass from Luka Doncic.
DiCaprio, Maguire, Orlando Bloom and Floyd Mayweather were all just feet away from the shot .