The Oscars will be long remembered for actor Will Smith smacking comedian Chris Rock on stage.
Chris Rock made a joke about Will Smith's wife Jada Pinkett Smith - saying he can't wait to see her in GI Jane 2.
Jada Pinkett Smith has been open about her struggle with alopecia, an autoimmune disorder that leads to hair loss. She has a shaved head.
Will Smith walked onto stage - and slapped Chris Rock with an open hand.
Chris Rock was left stunned - Smith returned to his seat - before swearing at the comedian.
Will Smith later won best actor for his role as Venus and Serena Williams' father Richard - in the film King Richard.
