When the Namibian-born stunner, 24, made her debut during the first section of the show, Levine cheered proudly from his front row seat near the end of the catwalk. Prinsloo beamed when she saw the singer, 34, and their friends, which included his Maroon 5 bandmate James Valentine.
She gave her section a big smile before pumping her arms up in the air as she neared the end of her walk. During her strut back across the glittering stage at New York’s Armory, she shot them another giddy smile.
Later on in the show, when Prinsloo led the final “Snow Angels” section, The Voice coach led a standing ovation as she walked by in a sparkly lingerie set and pluming angels wings. After seeing Levine and their friends on their feet for her, she threw them another big smile before throwing up her arms in delight.
Levine and Prinsloo, who began dating last year, briefly split before their surprise engagement in July.
“We’re just very excited to start a new chapter,” Prinsloo told PEOPLE shortly after the news was announced.