In arguably the biggest scandal, Will Smith took to the stage and slapped presenter Chris Rock over a joke about his wife, Jada Pinkett Smith.
In 2017, La La Land was declared the winner of Best Picture instead of 'Moonlight' after an accidental envelope swap.
In 1973, legendary actor Marlon Brando refused to accept the award, sending Native American actress Sacheen Littlefeather in his place.
During the 2003 Oscars, Adrien Brody grabbed presenter Halle Berry and gave her a passionate kiss without seeking her consent.
When white nominees dominated the nominations at Oscars 20215, the hashtag #OscarsSoWhite went viral on Twitter.
Anne Hathaway and James Franco were trolled right, left and centre for doing an alleged terrible job as hosts at the 2011 Oscars.
Angelina Jolie's a little too much public display of affection for her brother, James Haven, during the 2000 Oscars, grabbed many eyeballs.