'Joker' earns Joaquin Phoenix his maiden Oscar

Hollywood star Joaquin Phoenix finally ended his dry run at the Oscars as he picked up the best actor trophy for his performance in and as 'Joker' at the 92nd Academy Awards.

The 45-year-old actor had earlier bagged a BAFTA, a Golden Globe and a Screen Actors Guild Award for his turn as a failed, unhinged stand-up comedian who descends into chaos.

In a lengthy and rambling speech, Phoenix touched upon racism, climate change and gender inequality. He also remembered his brother River Phoenix, who died of a drug overdose at the age of 23 in 1993.

"When he was 17, my brother wrote this lyric. He said, 'run to the rescue with love and peace will follow'," Phoenix said.

At the Academy Awards and the entire Hollywood award season, Phoenix had emerged as an undisputed frontrunner even though he was up against the likes of Leonardo DiCaprio ('Once Upon a Time in Hollywood'), Adam Driver ('Marriage Story'), Antonio Banderas ('Pain & Glory') and Jonathan Pryce ('The Two Popes').