Sam Smith may have won the Oscar on Sunday night (Feb. 28) for Best Original Song for his James Bond Spectre theme song "Writing's on the Wall," but that doesn't mean the evening went so well for him. The British pop star called his performance at the Academy Awards the "worst moment" of his life and he made a major gaffe upon accepting the golden statuette.

Smith was the first of three performers to take the stage at the Oscars, and his performance of "Writing's on the Wall" was notably shaky. Despite being a seasoned performer, Smith was noticeably nervous on the stage, with his voice warbling and his feet shuffling from side to side. And while fans and critics lampooned the performance, Smith also wasn't so keen on his live showing.

"It was the worst moment of my life. Singing was horrible. I hated every minute," Smith said in an interview with the BBC.

But, his performance wasn't the only less-than-stellar moment for Smith at the Oscars. Upon accepting his award, he claimed himself to be the first openly gay man to win a golden statuette, misquoting Sir Ian McKellen (who said no openly gay man has won an acting Oscar), and he was wrong. "I stand here tonight as a proud gay man, and I hope we can all stand together as equals one day," Smith said, dedicating his award to the LGBT community.

However, several openly gay people have won Oscars. Dustin Lance Black won the award in 2009 for Best Original Screenplay (Milk), director Alan Ball also won in 2000 for writing American Beauty. Smith also needed to only look at his peers for openly gay winners - Elton John and Melissa Etheridge also won Oscars while out of the closet.

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