Meet the first ever fan-voted Miss USA contestant, who's shaking up the competition

The 26-year-old contestant in Sunday's Miss USA competition (airing on Fox) is its first ever "Miss 52." Instead of entering as a winner of a state pageant, she was picked by people on social media to stand alongside the 51 other women. She's the first ever fan-voted Miss USA contestant.

When WME/IMG bought the Miss Universe organization from Donald Trump last year, following his controversial election comments, the company set about making some changes to how the pageants work. A big one has been bringing in the voices of people who aren't insiders in the pageant world.

Though Miller was twice a first runner-up for Miss Oklahoma, she never made it to the Miss USA stage until fans rallied around her in the Miss 52 voting. Now she has a shot at winning the Miss USA title and going on to Miss Universe.

"This is absolutely my last chance," Miller told Business Insider this week as she prepared for Miss USA. "It feels incredible."

Get to know Alexandra Miller and how she made it to the Miss USA competition below: