LeBron James seemingly gave his son Bronny a playful warning, making sure he didn't call him 'dad' while singing Happy Birtday in the Los Angeles Lakers' practice facility Monday

James' unbelievable longevity means he has a ton of former teammates and coaches. Some of them, including Steve Kerr, who coached him in this past summer's Olympics while with Team USA and against him in four NBA Finals,

Bronny and the rest of the Lakers rookie serenaded LeBron with their rendition of "Happy Birthday" on his 40th.