The spawns of LeBron James and Carmelo Anthony brought out all the stars on Monday night ... 'cause a slew of A-listers hit up a H.S. gym in L.A. -- all to catch a glimpse of the NBA stars' sons go at it on the hardwood.
Sierra Canyon, led by Bronny and Bryce James, hosted Kiyan Anthony's school, Christ The King, in a nationally televised basketball showcase in Chatsworth -- and, as expected, the matchup lived up to expectations .