Will Smith slapping Chris Rock at the Oscars left the audience and viewers at home in a state of shock.
But it's not the first time that the movie star has been antagonized by the comedian.
In fact, a feud has been brewing between the pair over the past five years thanks to repeated jokes made at Will's expense.
When hosting the Oscars back in 2016, Chris got himself into trouble with the actor when he used Will's wife Jada Pinkett Smith as joke material in his opening monologue.
In an opening bit about diversity, Chris, 57, poked fun at Jada, 50, for boycotting the Oscars when Will failed to receive a nomination for the movie Concussion.
'Jada got mad, said she's not coming. Jada boycotting the Oscars is like me boycotting Rihanna's panties. I wasn't invited,' Chris said.
'You get mad. It's not fair that Will was this good and didn't get nominated. It's also not fair that Will was paid $20 million for Wild Wild West.'
Following the dig, TMZ had approached Will for comment but he remain silent and refused to answer.