According to her bio at Hollywood Life:
"Yovanna Ventura (born November 24, 1995) is a Miami-based fit model, currently without representation. She gained public recognition for her friendship with Justin Bieber, with whom she has been spotted several times; once, memorably, in Venice Beach, and another time at a Floyd Mayweather in Vegas, at which Kylie Jenner was also tagging along. She has nearly 1.7 million Instagram followers and loves posting selfies, which she watermarks with her Instagram handle. She is very proud of her butt, incidentally, and posts her workout and diet plans for her followers."
Some of our favorite pics are below, but be sure to follow her on Instagram at @yoventura!