When Joaquin Phoenix attacks! Joaquin Phoenix is captured on video at a Miami club last night, jumping into the crowd and attacking a heckler before being removed by security.

Joaquin Phoenix was giving a rap concert at the LIV night club in the Fontainebleau Miami Beach hotel – which he was 4 hours late for – when a heckler apparently pissed him off so much that he said, “We have a fucking bitch in the audience and rapping “I’ve got $1million in the bank. What have you got bitch?”

Then he took a jump onto the heckler and the crowd chanted “beat him up, beat him up.”

Yet another Joaquin Phoenix hoax being filmed by pal Casey Affleck… or just another quirky Joaquin incident?