Will Smith has explained smacking Chris Rock, blaming the love he has for his wife.
The actor, 53, took offence to comments made about his wife by the 57-year-old comedian earlier in the night.
Will won the award for Best Actor and used his acceptance speech to say: "I want to apologise to the Academy, I want to apologise to all my fellow nominees."
The star was tearful as he made his speech for what was his first ever Oscars win.
He continued: "This is a beautiful moment and I'm not crying for winning an award, it's not about winning an award for me, it's about being able to shine a light on all of the people.
"Art imitates life, I look like the crazy father, just like they said about Richard Williams, but love will make you do crazy things."
After paying a beautiful tribute to his mother and other members of his family he added: "Thank you for this honour, thank you for this moment...I hope the Academy invites me back."
He had earlier appeared to walk up to the stage and slap the presenter who had mocked Jada for her "GI Jane" appearance.
After storming the stage, Will returned to his seat and yelled: "Keep my wife's name out of your f****** mouth."
Still standing on stage, Chris appeared shell shocked by the incident before he tried to regain his composure and resume presenting the best documentary feature category.
Elsewhere in Will's speech after being awarded the gong for his portrayal of Venus and Serena Williams' dad in King Richard, he said: "Richard Williams was a fierce defender of his family.
"In this time in my life, in this moment, I am overwhelmed by what God is calling me to do and be in this world."
He added: "I'm being called on in my life to love people and to protect people and to be a river to my people.
"I know to do what we do you've got to be able to take abuse, you've got to be able to have people talk crazy about you in this business.
"You've got to be able have people disrespecting you and you've got to smile and pretend like that's OK."
The Academy later released a statement saying it didn't condone violence. It read: "The Academy does not condone violence of any form," the organisation tweeted after the show ended on Sunday night.
"Tonight we are delighted to celebrate our 94th Academy Awards winners, who deserve this moment of recognition from their peers and movie lovers around the world."
Beyonce had opened the ceremony with a fantastic performance of her Oscar-nominated song from the same movie.
While the tune didn't win an award, the 40-year-old songstress put on an epic show from a tennis court in Compton, where Venus and Serena first took to the sport.
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