The 37-year-old actor-writer, who introduced the first Tony nominee for best revival of a musical, "My Fair Lady", called out the state of women's right in the US.
The musical, based on George Bernard Shaw's "Pygmalion" is a comedy about class.
"It tells the story of a scruffy flower girl, Eliza Doolittle, who is transformed by Henry Higgins, a man-splaining expert on dialects," Schumer said.
The "I Feel Pretty" star pointed out the production, which first hit Broadway in 1956, continues to be relevant even today.
"This interpretation celebrates Eliza's growing self-confidence and highlights equal rights for women. Because we actually don't have that...
"In Eliza's words, The difference between a lady and a flower girl is not how she behaves, but how she is treated," she added.
At the awards, the revival was nominated for 10 Tonys, including acting nods for Harry Hadden-Paton, who plays Higgins and Lauren Ambrose as Eliza.
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