Jennifer Hudson returned to the Oscars on Sunday for a special performance of "I'll Fight" — the track featured in the RBG documentary. Songwriter Diane Warren wrote the song for Hudson to sing in the film, which documents the life of US Supreme Court Justice Ruth Bader Ginsburg, and Hudson made sure to hit all the notes during her performance. Fun fact: Hudson won the Oscar for best supporting actress for her role as Effie White in Dreamgirls back in 2007. Check out her performance ahead.
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