Demi-Leigh Nel-Peters, Miss South Africa 2017, rehearses at the Axis at Planet Hollywood in Las Vegas on November 22, 2017. Pic/AFP

Demi-Leigh Nel-Peters, Miss South Africa 2017 is crowned Miss Universe at the conclusion of the three-hour special programming event. Pic/AFP

Demi-Leigh Nel-Peters, Miss South Africa 2017 is crowned Miss Universe at the conclusion of the three-hour special programming event. Pic/AFP

Miss South Africa 2017 Demi-Leigh Nel-Peters competes in the swimsuit competition during the 2017 Miss Universe Pageant at The Axis at Planet Hollywood Resort & Casino on November 26, 2017 in Las Vegas, Nevada. Pic/AFP

Miss South Africa 2017 Demi-Leigh Nel-Peters, Miss Canada 2017 Lauren Howe, Miss Philippines 2017 Rachel Peters, Miss USA 2017 Kara McCullough, and Miss Venezuela 2017 Keysi Sayago are named top 10 finalists during the 2017 Miss Universe Pageant at The Axis at Planet Hollywood Resort & Casino on November 26, 2017 in Las Vegas, Nevada. Pic/AFP

Miss South Africa 2017 Demi-Leigh Nel-Peters walks the stage during the Miss Universe pageant on November 26, 2017 in Las Vegas, Nevada. Pic/ AFP

Demi-Leigh Nel-Peters looks stunning in an evening gown during the event. Pic/AFP

Miss South Africa Demi-Leigh Nel-Peters cries after she was announced as the new Miss Universe at the Miss Universe pageant on Sunday, November 26, 2017, in Las Vegas. Pic/AP/PTI

Miss South Africa 2017 Demi-Leigh Nel-Peters reacts as she is named the winner of the 2017 Miss Universe Pageant. Pic/AFP

Miss South Africa 2017 Demi-Leigh Nel-Peters (L) reacts as she is crowned new Miss Universe 2017 by Miss Universe 2016 Iris Mittenaere November 26, 2017, in Las Vegas, Nevada. Beauties from across the globe converged in Las Vegas Sunday, where Miss South Africa was crowned Miss Universe. Demi-Leigh Nel-Peters, 22, edged out her rivals from Colombia and Jamaica to take the crown.

Miss South Africa 2017 Demi-Leigh Nel-Peters (L) reacts as she is crowned new Miss Universe 2017 by Miss Universe 2016 Iris Mittenaere November 26, 2017, in Las Vegas, Nevada. Beauties from across the globe converged in Las Vegas Sunday, where Miss South Africa was crowned Miss Universe. Demi-Leigh Nel-Peters, 22, edged out her rivals from Colombia and Jamaica to take the crown.

Miss Universe 2017 Demi-Leigh Nel-Peters appears in the press room after the 2017 Miss Universe Pageant at The Axis at Planet Hollywood Resort & Casino. Pic/AFP