Willow, a koala joey in Australia's Symbio Wildlife Park, was playing the star of a video shoot, when she got royally photobombed by a butterfly. The park was shooting a series of videos for its sustainability initiatives when the koala and the butterfly hit it off instantly. The video happens to have gone viral on the occasion of World Animal Day and it's simply adorable. Kevin Fallon, the marketing and creative services manager of the park, told ABC, "When we actually put the butterfly on the flower, Willow came running over and starting getting really inquisitive, nuzzling up to it. Before we knew it, it actually flew onto Willow's head and then stayed there for ages."