Will Smith was banned for 10 years from all Academy events, including the Oscars, after slapping host Chris Rock on stage and because of this, Halle Berry and Jessica Chastain presented the best actress award instead to Michelle Yeoh.
Each year, it's the tradition that the previous year's winner of best actor announces the winner of best actress and vice versa.
However, after Smith's actions, Berry and Chastain stepped into present the award for which Yeoh, Cate Blachett, Andrea Riseborough, Ana de Armas, and Michelle Williams were in contention.
