During her final walk with the crown, the 21-year-old brunette beauty thanked her family and friends before calling out her Jonas Brothers beau.
"To the very special person who puts a smile on my face every day, I can't wait to start this new chapter with you," Culpo gushed from the stage at Moscow's Crocus City Hall.
But Culpo's kind words didn't stop there.
Pre-show, Culpo shared an adorable photo of herself and Jonas hugging backstage. She captioned the romantic PDA pic with, "To the person who puts a smile on my face every day"....1 hour until show time :) #missuniverse."
The 21-year-old hunky singer also shared a special message for his gal while at the Miss Universe pageant over the weekend. He posted a photo of himself next to a poster of Culpo, writing, "'I got my eyes on you. You're everything that I see' Happy to be in Moscow supporting my girl on her final walk as miss Universe. So proud of you @oliviaculpo."
After Culpo's final walk as Miss Universe, Jonas tweeted, "Amazing time at miss universe 2013 congrats @oliviaculpo you were amazing. Now time to celebrate!"