Here's the latest on TOMMY LEE's fight with his son BRANDON: Tommy didn't just get a fat lip . . . Brandon knocked him out cold. That's why he ended up in the hospital.
Now, Tommy says he was in bed with his fiancée when Brandon came in and attacked him. But Brandon is blaming his dad's supposed alcoholism.
He told "People" magazine, quote, "I've worked tirelessly organizing an intervention and it's incredibly upsetting that it never came to fruition . . . I love my father and just want to see him sober, happy and healthy."
He also admitted that the argument was touched off by Tommy's Tweets about Brandon's mom, PAMELA ANDERSON.
Tommy responded by Tweeting that he's happier than he's ever been, and he has, quote, "a few drinks here and there."
(It was Tommy's fiancée who called 911, and TMZ has the call. You can listen to it here.)