During the show, Nel-Peters also shared the story of literally being abducted by car-jackers on the night of being crowned Miss South Africa, and how she channeled the trauma into running self-defense programs for young women in her country.
Miss Colombia Laura Gonzalez, right, is first runner up. AP/John Locher Miss South Africa Demi-Leigh Nel-Peters, left, and Miss Colombia Laura Gonzalez hold hands before they announce the victor at the Miss Universe pageant.
In the first question and answer round of the competition, Nel-Peters was asked what is the biggest issue women face around the world?
This year, Cambodia, Laos and Nepaul competed at the Miss Universe finals for the first time ever.
Nel-Peters accepts her crown from her doppelganger, basically - Iris Mittenaere, Miss Universe 2016 (and previously Miss France). And Miss Universe is a woman that has overcome many fears and by that she is able to help other women to overconme their fears.
The 22-year-old from the Western Cape is only the second South African to win the title, following Margaret Gardiner's win in 1978.
The 66th Miss Universe pageant will air live on Sunday from The Axis at Planet Hollywood in Las Vegas.
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Wurtzbach was one of the judges for the telecast.
Peters was not called during the regional announcements.
She loves making handmade cards and is a lover of scrapbooking.
Peters consistently made it to the Top 10 and Top 5 of the home votes.
Peters advanced to the top 16 via wildcard and showcased her toned figure in the swimsuit round.
The night before the contest, Peters shared on Instagram: "I've learnt so much about myself these last few days and have made many wonderful friends that no matter what happens tomorrow, I already feel like a victor!" You've all been incredible (it blows my mind) and you've all done your part.