In just days we’ll know which dog is the world’s ugliest. That’s because Friday (June 21) the Sonoma-Marin Fair in Petaluma, California, is holding its annual World’s Ugliest Dog Contest again. Last year, the 30th annual World’s Ugliest Dog Contest, saw Zsa Zsa, an English bulldog, take top honors. Zsa Zsa’s owner is Megan Brainard of Anoka, Minnesota.