Will Smith hitting Chris Rock live onstage in reaction to a joke about his wife joins a list of Oscar scandals, outtakes and bizarre incidents from the last 94 ceremonies.
Chris Rock made a joke about Jada Pinkett Smith's buzzcut hair, while Jada has previously spoken about her struggles with alopecia.
In 94 years there have been a number of other notorious incidents at the annual Academy Awards.
In 1974 a streaker - English teacher Robert Opel - ran across the stage in front of David Niven and Elizabeth Taylor in protest about how society is too 'conformist'. In an unconnected incident Opel was later murdered.
In 2014 John Travolta called Idina Menzel, voice of Frozen hit Let It Go, Adele Dazeem . The producers had spelled her name phonetically on the autocue in a bid to make it easy to pronounce. Menzel took to TikTok with a light-hearted rendition of That's Not My Name.
In 1973 Marlon Brando refused to accept the best actor Oscar , and sent Sacheen Littlefeather up as a protect as the treatment of Native Americans. Others refused to accept their prizes over the years - including actor George C Scott.
In 2000 Angelia Jolie used her speech to say how in love she was with her brother , and later kissed him at an after-party. It wasn't the only unexpected kiss at the event, in 2003 Adrien Brody unexpectedly kissed Halle Berry live onstage.
In 2017 Faye Dunaway and Warren Beatty accidentally announced that La La Land had won best picture . The winner was actually Moonlight. There are rumours other awards have gone to the wrong winners after mistakes onstage during the history in the event.
In 1989 Rob Lowe and Snow White performed a duet so bad it prompted letters of complaint from celebrities.
