Ariadna Gutiérrez Arévalo is a Colombian actress, model and beauty pageant titleholder who was crowned Miss Colombia 2014. She represented Colombia at the Miss Universe 2015 competition on December 20, 2015 and placed 1st runner-up after host Steve Harvey mistakenly announced her as the winner. After pageantry, she appeared in the film XXX: Return of Xander Cage and tied for third place on Celebrity Big Brother 1.

Miss Universe 2015 was the 64th Miss Universe pageant, held at The AXIS in Las Vegas, Nevada, United States on 20 December 2015. This was the first edition of the pageant to be held under the ownership of WME/IMG, which purchased the Miss Universe Organization from Donald Trump on 14 September 2015. Consequently, it was also the first Miss Universe event to be aired by Fox and Azteca as the pageant's respective English and Spanish broadcasters instead of NBC.