Miss USA made the best introduction at the Miss Universe 2017 pageant

Sara M Moniuszko | USA TODAY

Show Caption Hide Caption Miss USA turns tables on Miss Universe host Steve Harvey Miss USA 2017 Kára McCullough may not have won Miss Universe, but she won our hearts with this awesome response to pageant host Steve Harvey.

Miss USA 2017 Kára McCullough made the stage her own during the Miss Universe 2017 competition Sunday.

The Washington, D.C., native came prepared and ready to speak up about her mission, turning the tables by asking Steve Harvey a question when she was announced as a top 16 finalist.

“I know that you are a (scientist with the) U.S. Nuclear Regulatory Commission with a degree in chemistry,” host Steve Harvey said, introducing McCullough. “I can’t read the rest of that question because I don’t know what none of that is.”

After saying she was feeling "overly happy" to be announced as a finalist, she took the chance to give a mini-speech about her cause.

“Actually, I want to give you a pop quiz,” she said. “Do you know where radium is at on the periodic table?”

“Radium is actually one of my favorite elements because it was founded by the mother of radio chemistry, Marie Curie,” she said. “And as a radio chemist, I advocate for so many children in S.T.E.M. (Science, technology, engineering, and mathematics) and women in leadership positions and that’s the mission of a Miss Universe.”